From 3977dc0618589144d6f70d11066e6dba68c0ebba Mon Sep 17 00:00:00 2001
From: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Date: Thu, 22 Feb 2024 00:32:47 +0000
Subject: [PATCH] ServiceWorker static routing API (#1701)

SHA: 8d4b9dfbeea511955a259949f2bc01227f995fe2
Reason: push, by mkruisselbrink

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
 docs/index.html | 1908 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 1288 insertions(+), 620 deletions(-)

diff --git a/docs/index.html b/docs/index.html
index b606e864..e550dac0 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -7,7 +7,7 @@
   <link href="https://www.w3.org/StyleSheets/TR/2021/W3C-ED" rel="stylesheet">
   <meta content="Bikeshed version 82ce88815, updated Thu Sep 7 16:33:55 2023 -0700" name="generator">
   <link href="https://www.w3.org/TR/service-workers/" rel="canonical">
-  <meta content="dc2efeb8ab6c943d1d7f7867ea6484edd219bbaf" name="document-revision">
+  <meta content="8d4b9dfbeea511955a259949f2bc01227f995fe2" name="document-revision">
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {
     color: var(--a-normal-text);
@@ -889,7 +889,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2021/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">Service Workers Nightly</h1>
-   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2024-02-15">15 February 2024</time></p>
+   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2024-02-22">22 February 2024</time></p>
    <details open>
     <summary>More details about this document</summary>
     <div data-fill-with="spec-metadata">
@@ -1056,26 +1056,31 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
         <li><a href="#wait-until-method"><span class="secno">4.4.1</span> <span class="content"><code class="idl"><span>event.waitUntil(f)</span></code></span></a>
        </ol>
       <li>
-       <a href="#fetchevent-interface"><span class="secno">4.5</span> <span class="content"><code class="idl"><span>FetchEvent</span></code></span></a>
+       <a href="#installevent-interface"><span class="secno">4.5</span> <span class="content"><code class="idl"><span>InstallEvent</span></code></span></a>
        <ol class="toc">
-        <li><a href="#fetch-event-request"><span class="secno">4.5.1</span> <span class="content"><code class="idl"><span>event.request</span></code></span></a>
-        <li><a href="#fetch-event-preloadresponse"><span class="secno">4.5.2</span> <span class="content"><code class="idl"><span>event.preloadResponse</span></code></span></a>
-        <li><a href="#fetch-event-clientid"><span class="secno">4.5.3</span> <span class="content"><code class="idl"><span>event.clientId</span></code></span></a>
-        <li><a href="#fetch-event-resultingclientid"><span class="secno">4.5.4</span> <span class="content"><code class="idl"><span>event.resultingClientId</span></code></span></a>
-        <li><a href="#fetch-event-replacesClientId"><span class="secno">4.5.5</span> <span class="content"><code class="idl"><span>event.replacesClientId</span></code></span></a>
-        <li><a href="#fetch-event-handled"><span class="secno">4.5.6</span> <span class="content"><code class="idl"><span>event.handled</span></code></span></a>
-        <li><a href="#fetch-event-respondwith"><span class="secno">4.5.7</span> <span class="content"><code class="idl"><span>event.respondWith(r)</span></code></span></a>
+        <li><a href="#register-router-method"><span class="secno">4.5.1</span> <span class="content"><code class="idl"><span>event.addRoutes(rules)</span></code></span></a>
        </ol>
       <li>
-       <a href="#extendablemessageevent-interface"><span class="secno">4.6</span> <span class="content"><code class="idl"><span>ExtendableMessageEvent</span></code></span></a>
+       <a href="#fetchevent-interface"><span class="secno">4.6</span> <span class="content"><code class="idl"><span>FetchEvent</span></code></span></a>
        <ol class="toc">
-        <li><a href="#extendablemessage-event-data"><span class="secno">4.6.1</span> <span class="content"><code class="idl"><span>event.data</span></code></span></a>
-        <li><a href="#extendablemessage-event-origin"><span class="secno">4.6.2</span> <span class="content"><code class="idl"><span>event.origin</span></code></span></a>
-        <li><a href="#extendablemessage-event-lasteventid"><span class="secno">4.6.3</span> <span class="content"><code class="idl"><span>event.lastEventId</span></code></span></a>
-        <li><a href="#extendablemessage-event-source"><span class="secno">4.6.4</span> <span class="content"><code class="idl"><span>event.source</span></code></span></a>
-        <li><a href="#extendablemessage-event-ports"><span class="secno">4.6.5</span> <span class="content"><code class="idl"><span>event.ports</span></code></span></a>
+        <li><a href="#fetch-event-request"><span class="secno">4.6.1</span> <span class="content"><code class="idl"><span>event.request</span></code></span></a>
+        <li><a href="#fetch-event-preloadresponse"><span class="secno">4.6.2</span> <span class="content"><code class="idl"><span>event.preloadResponse</span></code></span></a>
+        <li><a href="#fetch-event-clientid"><span class="secno">4.6.3</span> <span class="content"><code class="idl"><span>event.clientId</span></code></span></a>
+        <li><a href="#fetch-event-resultingclientid"><span class="secno">4.6.4</span> <span class="content"><code class="idl"><span>event.resultingClientId</span></code></span></a>
+        <li><a href="#fetch-event-replacesClientId"><span class="secno">4.6.5</span> <span class="content"><code class="idl"><span>event.replacesClientId</span></code></span></a>
+        <li><a href="#fetch-event-handled"><span class="secno">4.6.6</span> <span class="content"><code class="idl"><span>event.handled</span></code></span></a>
+        <li><a href="#fetch-event-respondwith"><span class="secno">4.6.7</span> <span class="content"><code class="idl"><span>event.respondWith(r)</span></code></span></a>
        </ol>
-      <li><a href="#execution-context-events"><span class="secno">4.7</span> <span class="content">Events</span></a>
+      <li>
+       <a href="#extendablemessageevent-interface"><span class="secno">4.7</span> <span class="content"><code class="idl"><span>ExtendableMessageEvent</span></code></span></a>
+       <ol class="toc">
+        <li><a href="#extendablemessage-event-data"><span class="secno">4.7.1</span> <span class="content"><code class="idl"><span>event.data</span></code></span></a>
+        <li><a href="#extendablemessage-event-origin"><span class="secno">4.7.2</span> <span class="content"><code class="idl"><span>event.origin</span></code></span></a>
+        <li><a href="#extendablemessage-event-lasteventid"><span class="secno">4.7.3</span> <span class="content"><code class="idl"><span>event.lastEventId</span></code></span></a>
+        <li><a href="#extendablemessage-event-source"><span class="secno">4.7.4</span> <span class="content"><code class="idl"><span>event.source</span></code></span></a>
+        <li><a href="#extendablemessage-event-ports"><span class="secno">4.7.5</span> <span class="content"><code class="idl"><span>event.ports</span></code></span></a>
+       </ol>
+      <li><a href="#execution-context-events"><span class="secno">4.8</span> <span class="content">Events</span></a>
      </ol>
     <li>
      <a href="#cache-objects"><span class="secno">5</span> <span class="content">Caches</span></a>
@@ -1149,10 +1154,16 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
       <li><a href="#installation-algorithm"><span class="secno"></span> <span class="content"><span>Install</span></span></a>
       <li><a href="#activation-algorithm"><span class="secno"></span> <span class="content"><span>Activate</span></span></a>
       <li><a href="#try-activate-algorithm"><span class="secno"></span> <span class="content"><span>Try Activate</span></span></a>
+      <li><a href="#setup-serviceworkerglobalscope"><span class="secno"></span> <span class="content"><span>Setup ServiceWorkerGlobalScope</span></span></a>
       <li><a href="#run-service-worker-algorithm"><span class="secno"></span> <span class="content"><span>Run Service Worker</span></span></a>
       <li><a href="#all-fetch-listeners-are-empty-algorithm"><span class="secno"></span> <span class="content"><span>All Fetch Listeners Are Empty</span></span></a>
       <li><a href="#terminate-service-worker-algorithm"><span class="secno"></span> <span class="content"><span>Terminate Service Worker</span></span></a>
       <li><a href="#on-fetch-request-algorithm"><span class="secno"></span> <span class="content"><span>Handle Fetch</span></span></a>
+      <li><a href="#create-fetch-event-and-dispatch-algorithm"><span class="secno"></span> <span class="content"><span>Create Fetch Event and Dispatch</span></span></a>
+      <li><a href="#parse-urlpattern-algorithm"><span class="secno"></span> <span class="content"><span>Parse URL Pattern</span></span></a>
+      <li><a href="#verify-router-rule-algorithm"><span class="secno"></span> <span class="content"><span>Verify Router Condition</span></span></a>
+      <li><a href="#match-router-condition-algorithm"><span class="secno"></span> <span class="content"><span>Match Router Condition</span></span></a>
+      <li><a href="#get-router-source-algorithm"><span class="secno"></span> <span class="content"><span>Get Router Source</span></span></a>
       <li><a href="#should-skip-event-algorithm"><span class="secno"></span> <span class="content"><span>Should Skip Event</span></span></a>
       <li><a href="#fire-functional-event-algorithm"><span class="secno"></span> <span class="content"><span>Fire Functional Event</span></span></a>
       <li><a href="#on-client-unload-algorithm"><span class="secno"></span> <span class="content"><span>Handle Service Worker Client Unload</span></span></a>
@@ -1177,6 +1188,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
       <li><a href="#request-matches-cached-item-algorithm"><span class="secno"></span> <span class="content"><span>Request Matches Cached Item</span></span></a>
       <li><a href="#batch-cache-operations-algorithm"><span class="secno"></span> <span class="content"><span>Batch Cache Operations</span></span></a>
       <li><a href="#is-async-module-algorithm"><span class="secno"></span> <span class="content"><span>Is Async Module</span></span></a>
+      <li><a href="#lookup-race-response-algorithm"><span class="secno"></span> <span class="content"><span>Lookup Race Response</span></span></a>
      </ol>
     <li>
      <a href="#extended-http-headers"><span class="secno"></span> <span class="content">Appendix B: Extended HTTP headers</span></a>
@@ -1241,11 +1253,12 @@ <h3 class="heading settled" data-level="2.1" id="service-worker-concept"><span c
      <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker②⑥">service worker</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-export id="dfn-set-of-extended-events">set of extended events</dfn> (a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set④">set</a>) whose <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item②">item</a> is an <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent">ExtendableEvent</a></code>. It is initially a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set⑤">set</a>.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker②⑦">service worker</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-noexport id="service-worker-start-status">start status</dfn> which can be null or a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-completion-record-specification-type" id="ref-for-sec-completion-record-specification-type">Completion</a>. It is initially null.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker②⑧">service worker</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-noexport id="service-worker-all-fetch-listeners-are-empty-flag">all fetch listeners are empty flag</dfn>. It is initially unset.</p>
-     <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker②⑨">service worker</a> is said to be <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-noexport id="service-worker-running">running</dfn> if its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-loop" id="ref-for-event-loop">event loop</a> is running.</p>
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker②⑨">service worker</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-noexport id="service-worker-list-of-router-rules">list of router rules</dfn> (a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list">list</a> of <code class="idl"><a data-link-type="idl" href="#dictdef-routerrule" id="ref-for-dictdef-routerrule">RouterRule</a></code>s). It is initially an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①">list</a>.</p>
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⓪">service worker</a> is said to be <dfn class="dfn-paneled" data-dfn-for="service worker" data-dfn-type="dfn" data-noexport id="service-worker-running">running</dfn> if its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-loop" id="ref-for-event-loop">event loop</a> is running.</p>
      <section>
       <h4 class="heading settled" data-level="2.1.1" id="service-worker-lifetime"><span class="secno">2.1.1. </span><span class="content">Lifetime</span><a class="self-link" href="#service-worker-lifetime"></a></h4>
-      <p>The lifetime of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⓪">service worker</a> is tied to the execution lifetime of events and not references held by <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①">service worker clients</a> to the <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker">ServiceWorker</a></code> object.</p>
-      <p>A user agent <em>may</em> <a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker">terminate</a> <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③①">service workers</a> at any time it:</p>
+      <p>The lifetime of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③①">service worker</a> is tied to the execution lifetime of events and not references held by <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①">service worker clients</a> to the <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker">ServiceWorker</a></code> object.</p>
+      <p>A user agent <em>may</em> <a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker">terminate</a> <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③②">service workers</a> at any time it:</p>
       <ul>
        <li data-md>
         <p>Has no event to handle.</p>
@@ -1283,12 +1296,12 @@ <h3 class="heading settled" data-level="2.2" id="service-worker-timing"><span cl
     </section>
     <section>
      <h3 class="heading settled" data-level="2.3" id="service-worker-registration-concept"><span class="secno">2.3. </span><span class="content">Service Worker Registration</span><a class="self-link" href="#service-worker-registration-concept"></a></h3>
-     <p>A <dfn class="dfn-paneled" data-dfn-for data-dfn-type="dfn" data-export id="dfn-service-worker-registration">service worker registration</dfn> is a tuple of a <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url">scope url</a>, a <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key">storage key</a>, and a set of <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③②">service workers</a>, an <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker">installing worker</a>, a <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker">waiting worker</a>, and an <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker">active worker</a>. A user agent <em>may</em> enable many <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration①">service worker registrations</a> at a single origin so long as the <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①">scope url</a> of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②">service worker registration</a> differs. A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③">service worker registration</a> of an identical <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url②">scope url</a> when one already exists in the user agent causes the existing <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④">service worker registration</a> to be replaced.</p>
+     <p>A <dfn class="dfn-paneled" data-dfn-for data-dfn-type="dfn" data-export id="dfn-service-worker-registration">service worker registration</dfn> is a tuple of a <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url">scope url</a>, a <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key">storage key</a>, and a set of <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③③">service workers</a>, an <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker">installing worker</a>, a <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker">waiting worker</a>, and an <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker">active worker</a>. A user agent <em>may</em> enable many <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration①">service worker registrations</a> at a single origin so long as the <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①">scope url</a> of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②">service worker registration</a> differs. A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③">service worker registration</a> of an identical <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url②">scope url</a> when one already exists in the user agent causes the existing <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④">service worker registration</a> to be replaced.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="service-worker-registration-storage-key">storage key</dfn> (a <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key①">storage key</a>).</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-scope-url">scope url</dfn> (a <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url" id="ref-for-concept-url③">URL</a>).</p>
-     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑦">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-installing-worker">installing worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③③">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state">state</a> is "<code>installing</code>". It is initially set to null.</p>
-     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑧">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-waiting-worker">waiting worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③④">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①">state</a> is "<code>installed</code>". It is initially set to null.</p>
-     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑨">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-active-worker">active worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑤">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state②">state</a> is either "<code>activating</code>" or "<code>activated</code>". It is initially set to null.</p>
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑦">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-installing-worker">installing worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③④">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state">state</a> is "<code>installing</code>". It is initially set to null.</p>
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑧">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-waiting-worker">waiting worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑤">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①">state</a> is "<code>installed</code>". It is initially set to null.</p>
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑨">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-active-worker">active worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑥">service worker</a> or null) whose <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state②">state</a> is either "<code>activating</code>" or "<code>activated</code>". It is initially set to null.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration①⓪">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-last-update-check-time">last update check time</dfn>. It is initially set to null.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration①①">service worker registration</a> is said to be <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-noexport id="service-worker-registration-stale">stale</dfn> if the registration’s <a data-link-type="dfn" href="#dfn-last-update-check-time" id="ref-for-dfn-last-update-check-time">last update check time</a> is non-null and the time difference in seconds calculated by the current time minus the registration’s <a data-link-type="dfn" href="#dfn-last-update-check-time" id="ref-for-dfn-last-update-check-time①">last update check time</a> is greater than 86400.</p>
      <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration①②">service worker registration</a> has an associated <dfn class="dfn-paneled" data-dfn-for="service worker registration" data-dfn-type="dfn" data-export id="dfn-update-via-cache">update via cache mode</dfn>, which is "<code>imports</code>", "<code>all</code>", or "<code>none</code>". It is initially set to "<code>imports</code>".</p>
@@ -1320,7 +1333,7 @@ <h3 class="heading settled" data-level="2.4" id="service-worker-client-concept">
     </section>
     <section>
      <h3 class="heading settled" data-level="2.5" id="control-and-use"><span class="secno">2.5. </span><span class="content">Control and Use</span><a class="self-link" href="#control-and-use"></a></h3>
-     <p>A <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①②">service worker client</a> has an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker">active service worker</a> that serves its own loading and its subresources. When a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①③">service worker client</a> has a non-null <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker①">active service worker</a>, it is said to be <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="controlling|controls|controlled" data-noexport id="dfn-control">controlled</dfn> by that <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②">active service worker</a>. When a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①④">service worker client</a> is <a data-link-type="dfn" href="#dfn-control" id="ref-for-dfn-control">controlled</a> by a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑥">service worker</a>, it is said that the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①⑤">service worker client</a> is <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="using|uses|used" data-noexport id="dfn-use">using</dfn> the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑦">service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration">containing service worker registration</a>.
+     <p>A <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①②">service worker client</a> has an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker">active service worker</a> that serves its own loading and its subresources. When a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①③">service worker client</a> has a non-null <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker①">active service worker</a>, it is said to be <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="controlling|controls|controlled" data-noexport id="dfn-control">controlled</dfn> by that <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②">active service worker</a>. When a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①④">service worker client</a> is <a data-link-type="dfn" href="#dfn-control" id="ref-for-dfn-control">controlled</a> by a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑦">service worker</a>, it is said that the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①⑤">service worker client</a> is <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="using|uses|used" data-noexport id="dfn-use">using</dfn> the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑧">service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration">containing service worker registration</a>.
     A <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client①⑥">service worker client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker③">active service worker</a> is determined as explained in the following subsections.</p>
      <p><em>The rest of the section is non-normative.</em></p>
      <p class="issue" id="issue-f6a7ea80"><a class="self-link" href="#issue-f6a7ea80"></a> The behavior in this section is not fully specified yet and will be specified in <a href="https://html.spec.whatwg.org">HTML Standard</a>. The work is tracked by the <a href="https://github.com/w3c/ServiceWorker/issues/765">issue</a> and the <a href="https://github.com/whatwg/html/pull/2809">pull request</a>.</p>
@@ -1349,14 +1362,14 @@ <h4 class="heading settled" data-level="2.5.2" id="control-and-use-worker-client
     </section>
     <section>
      <h3 class="heading settled" data-level="2.6" id="task-sources"><span class="secno">2.6. </span><span class="content">Task Sources</span><a class="self-link" href="#task-sources"></a></h3>
-     <p>The following additional <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source">task sources</a> are used by <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑧">service workers</a>.</p>
+     <p>The following additional <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source">task sources</a> are used by <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑨">service workers</a>.</p>
      <dl>
       <dt data-md>The <dfn class="dfn-paneled" data-dfn-type="dfn" data-export id="dfn-handle-fetch-task-source">handle fetch task source</dfn>
       <dd data-md>
-       <p>This <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source①">task source</a> is used for <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch">dispatching</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event①">fetch</a></code> events to <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker③⑨">service workers</a>.</p>
+       <p>This <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source①">task source</a> is used for <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch">dispatching</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event①">fetch</a></code> events to <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⓪">service workers</a>.</p>
       <dt data-md>The <dfn class="dfn-paneled" data-dfn-type="dfn" data-export id="dfn-handle-functional-event-task-source">handle functional event task source</dfn>
       <dd data-md>
-       <p>This <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source②">task source</a> is used for features that <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch①">dispatch</a> other <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events">functional events</a>, e.g. <code class="idl"><a class="idl-code" data-link-type="event" href="https://w3c.github.io/push-api/#h-the-push-event" id="ref-for-h-the-push-event">push</a></code> events, to <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⓪">service workers</a>.</p>
+       <p>This <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source②">task source</a> is used for features that <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch①">dispatch</a> other <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events">functional events</a>, e.g. <code class="idl"><a class="idl-code" data-link-type="event" href="https://w3c.github.io/push-api/#h-the-push-event" id="ref-for-h-the-push-event">push</a></code> events, to <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④①">service workers</a>.</p>
        <p class="note" role="note"><span class="marker">Note:</span> A user agent may use a separate task source for each functional event type in order to avoid a head-of-line blocking phenomenon for certain functional events.</p>
      </dl>
     </section>
@@ -1365,7 +1378,7 @@ <h3 class="heading settled" data-level="2.7" id="user-agent-shutdown"><span clas
      <p>A user agent <em>must</em> maintain the state of its stored <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②⑥">service worker registrations</a> across restarts with the following rules:</p>
      <ul>
       <li data-md>
-       <p>An <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker①">installing worker</a> does not persist but is discarded. If the <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②">installing worker</a> was the only <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④①">service worker</a> for the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②⑦">service worker registration</a>, the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②⑧">service worker registration</a> is discarded.</p>
+       <p>An <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker①">installing worker</a> does not persist but is discarded. If the <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②">installing worker</a> was the only <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④②">service worker</a> for the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②⑦">service worker registration</a>, the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration②⑧">service worker registration</a> is discarded.</p>
       <li data-md>
        <p>A <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①">waiting worker</a> promotes to an <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑥">active worker</a>.</p>
      </ul>
@@ -1411,13 +1424,13 @@ <h3 class="heading settled" data-level="3.1" id="serviceworker-interface"><span
   <dfn class="idl-code" data-dfn-for="ServiceWorkerState" data-dfn-type="enum-value" data-export id="dom-serviceworkerstate-redundant"><code><c- s>"redundant"</c-></code><a class="self-link" href="#dom-serviceworkerstate-redundant"></a></dfn>
 };
 </pre>
-     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker③">ServiceWorker</a></code> object represents a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④②">service worker</a>. Each <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker④">ServiceWorker</a></code> object is associated with a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④③">service worker</a>. Multiple separate objects implementing the <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑤">ServiceWorker</a></code> interface across documents and workers can all be associated with the same <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④④">service worker</a> simultaneously.</p>
-     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑥">ServiceWorker</a></code> object has an associated <code class="idl"><a data-link-type="idl" href="#enumdef-serviceworkerstate" id="ref-for-enumdef-serviceworkerstate①">ServiceWorkerState</a></code> object which is itself associated with <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑤">service worker</a>'s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state③">state</a>.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker③">ServiceWorker</a></code> object represents a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④③">service worker</a>. Each <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker④">ServiceWorker</a></code> object is associated with a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④④">service worker</a>. Multiple separate objects implementing the <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑤">ServiceWorker</a></code> interface across documents and workers can all be associated with the same <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑤">service worker</a> simultaneously.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑥">ServiceWorker</a></code> object has an associated <code class="idl"><a data-link-type="idl" href="#enumdef-serviceworkerstate" id="ref-for-enumdef-serviceworkerstate①">ServiceWorkerState</a></code> object which is itself associated with <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑥">service worker</a>'s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state③">state</a>.</p>
      <section>
       <h4 class="heading settled" data-level="3.1.1" id="service-worker-creation"><span class="secno">3.1.1. </span><span class="content">Getting <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑦">ServiceWorker</a></code> instances</span><a class="self-link" href="#service-worker-creation"></a></h4>
-      <p>An <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②">environment settings object</a> has a <dfn class="dfn-paneled" data-dfn-for="environment settings object" data-dfn-type="dfn" data-noexport id="environment-settings-object-service-worker-object-map">service worker object map</dfn>, a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map①">map</a> where the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys">keys</a> are <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑥">service workers</a> and the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values">values</a> are <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑧">ServiceWorker</a></code> objects.</p>
+      <p>An <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②">environment settings object</a> has a <dfn class="dfn-paneled" data-dfn-for="environment settings object" data-dfn-type="dfn" data-noexport id="environment-settings-object-service-worker-object-map">service worker object map</dfn>, a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map①">map</a> where the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys">keys</a> are <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑦">service workers</a> and the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values">values</a> are <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker⑧">ServiceWorker</a></code> objects.</p>
       <section class="algorithm" data-algorithm="service-worker-creation-algorithm">
-        To <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="get the service worker object|getting the service worker object" data-noexport id="get-the-service-worker-object">get the service worker object</dfn> representing <var>serviceWorker</var> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑦">service worker</a>) in <var>environment</var> (an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object③">environment settings object</a>), run these steps: 
+        To <dfn class="dfn-paneled" data-dfn-type="dfn" data-lt="get the service worker object|getting the service worker object" data-noexport id="get-the-service-worker-object">get the service worker object</dfn> representing <var>serviceWorker</var> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑧">service worker</a>) in <var>environment</var> (an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object③">environment settings object</a>), run these steps: 
        <ol>
         <li data-md>
          <p>Let <var>objectMap</var> be <var>environment</var>’s <a data-link-type="dfn" href="#environment-settings-object-service-worker-object-map" id="ref-for-environment-settings-object-service-worker-object-map">service worker object map</a>.</p>
@@ -1438,7 +1451,7 @@ <h4 class="heading settled" data-level="3.1.1" id="service-worker-creation"><spa
      </section>
      <section>
       <h4 class="heading settled" data-level="3.1.2" id="service-worker-url"><span class="secno">3.1.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworker-scripturl" id="ref-for-dom-serviceworker-scripturl①">scriptURL</a></code></span><a class="self-link" href="#service-worker-url"></a></h4>
-      <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorker" data-dfn-type="attribute" data-export id="dom-serviceworker-scripturl"><code>scriptURL</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑧">service worker</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer②">serialized</a> <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url">script url</a>.</p>
+      <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorker" data-dfn-type="attribute" data-export id="dom-serviceworker-scripturl"><code>scriptURL</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑨">service worker</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer②">serialized</a> <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url">script url</a>.</p>
       <div class="example" id="example-afd15a33">
        <a class="self-link" href="#example-afd15a33"></a> For example, consider a document created by a navigation to <code>https://example.com/app.html</code> which <a data-link-type="dfn" href="#match-service-worker-registration" id="ref-for-match-service-worker-registration②">matches</a> via the following registration call which has been previously executed: 
 <pre class="highlight"><c- c1>// Script on the page https://example.com/app.html</c->
@@ -1466,7 +1479,7 @@ <h4 class="heading settled" data-level="3.1.5" id="service-worker-postmessage-op
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorker" data-dfn-type="method" data-export data-lt="postMessage(message, options)|postMessage(message)" id="dom-serviceworker-postmessage-message-options"><code>postMessage(<var>message</var>, <var>options</var>)</code></dfn> method steps are:</p>
       <ol>
        <li data-md>
-        <p>Let <var>serviceWorker</var> be the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker④⑨">service worker</a> represented by <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this">this</a>.</p>
+        <p>Let <var>serviceWorker</var> be the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⓪">service worker</a> represented by <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this">this</a>.</p>
        <li data-md>
         <p>Let <var>incumbentSettings</var> be the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#incumbent-settings-object" id="ref-for-incumbent-settings-object">incumbent settings object</a>.</p>
        <li data-md>
@@ -1597,17 +1610,17 @@ <h4 class="heading settled" data-level="3.2.1" id="service-worker-registration-c
      <section class="algorithm" data-algorithm="navigator-service-worker-installing">
       <h4 class="heading settled" data-level="3.2.2" id="navigator-service-worker-installing"><span class="secno">3.2.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-installing" id="ref-for-dom-serviceworkerregistration-installing③">installing</a></code></span><a class="self-link" href="#navigator-service-worker-installing"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerRegistration" data-dfn-type="attribute" data-export id="dom-serviceworkerregistration-installing"><code>installing</code></dfn> attribute <em>must</em> return the value to which it was last set.</p>
-      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm②">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①④">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⓪">service worker</a>.</p>
+      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm②">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①④">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤①">service worker</a>.</p>
      </section>
      <section class="algorithm" data-algorithm="navigator-service-worker-waiting">
       <h4 class="heading settled" data-level="3.2.3" id="navigator-service-worker-waiting"><span class="secno">3.2.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-waiting" id="ref-for-dom-serviceworkerregistration-waiting③">waiting</a></code></span><a class="self-link" href="#navigator-service-worker-waiting"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerRegistration" data-dfn-type="attribute" data-export id="dom-serviceworkerregistration-waiting"><code>waiting</code></dfn> attribute <em>must</em> return the value to which it was last set.</p>
-      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm③">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①⑤">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤①">service worker</a>.</p>
+      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm③">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①⑤">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤②">service worker</a>.</p>
      </section>
      <section class="algorithm" data-algorithm="navigator-service-worker-active">
       <h4 class="heading settled" data-level="3.2.4" id="navigator-service-worker-active"><span class="secno">3.2.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-active" id="ref-for-dom-serviceworkerregistration-active③">active</a></code></span><a class="self-link" href="#navigator-service-worker-active"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerRegistration" data-dfn-type="attribute" data-export id="dom-serviceworkerregistration-active"><code>active</code></dfn> attribute <em>must</em> return the value to which it was last set.</p>
-      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm④">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①⑥">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤②">service worker</a>.</p>
+      <p class="note" role="note"><span class="marker">Note:</span> Within a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object&apos;s-realm" id="ref-for-environment-settings-object&apos;s-realm④">Realm</a>, there is only one <code class="idl"><a data-link-type="idl" href="#serviceworker" id="ref-for-serviceworker①⑥">ServiceWorker</a></code> object per associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤③">service worker</a>.</p>
      </section>
      <section class="algorithm" data-algorithm="service-worker-registration-navigationpreload">
       <h4 class="heading settled" data-level="3.2.5" id="service-worker-registration-navigationpreload"><span class="secno">3.2.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-navigationpreload" id="ref-for-dom-serviceworkerregistration-navigationpreload①">navigationPreload</a></code></span><a class="self-link" href="#service-worker-registration-navigationpreload"></a></h4>
@@ -1718,7 +1731,7 @@ <h3 class="heading settled" data-level="3.4" id="serviceworkercontainer-interfac
 };
 </pre>
      <p>The user agent <em>must</em> create a <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer④">ServiceWorkerContainer</a></code> object when a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/system-state.html#navigator" id="ref-for-navigator①">Navigator</a></code> object or a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/workers.html#workernavigator" id="ref-for-workernavigator①">WorkerNavigator</a></code> object is created and associate it with that object.</p>
-     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑤">ServiceWorkerContainer</a></code> provides capabilities to register, unregister, and update the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③④">service worker registrations</a>, and provides access to the state of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③⑤">service worker registrations</a> and their associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤③">service workers</a>.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑤">ServiceWorkerContainer</a></code> provides capabilities to register, unregister, and update the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③④">service worker registrations</a>, and provides access to the state of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③⑤">service worker registrations</a> and their associated <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤④">service workers</a>.</p>
      <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑥">ServiceWorkerContainer</a></code> has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerContainer" data-dfn-type="dfn" data-noexport id="serviceworkercontainer-service-worker-client">service worker client</dfn>, which is a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②①">service worker client</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global④">global object</a> is associated with the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/system-state.html#navigator" id="ref-for-navigator②">Navigator</a></code> object or the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/workers.html#workernavigator" id="ref-for-workernavigator②">WorkerNavigator</a></code> object that the <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑦">ServiceWorkerContainer</a></code> is retrieved from.</p>
      <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑧">ServiceWorkerContainer</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerContainer" data-dfn-type="dfn" data-noexport id="serviceworkercontainer-ready-promise">ready promise</dfn> (a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects①">promise</a> or null). It is initially null.</p>
      <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer⑨">ServiceWorkerContainer</a></code> object has a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source③">task source</a> called the <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerContainer" data-dfn-type="dfn" data-export id="dfn-client-message-queue">client message queue</dfn>, initially empty. A <a data-link-type="dfn" href="#dfn-client-message-queue" id="ref-for-dfn-client-message-queue">client message queue</a> can be enabled or disabled, and is initially disabled. When a <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer①⓪">ServiceWorkerContainer</a></code> object’s <a data-link-type="dfn" href="#dfn-client-message-queue" id="ref-for-dfn-client-message-queue①">client message queue</a> is enabled, the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-loop" id="ref-for-event-loop⑤">event loop</a> <em>must</em> use it as one of its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source④">task sources</a>. When the <code class="idl"><a data-link-type="idl" href="#serviceworkercontainer" id="ref-for-serviceworkercontainer①①">ServiceWorkerContainer</a></code> object’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global①">relevant global object</a> is a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/nav-history-apis.html#window" id="ref-for-window②">Window</a></code> object, all <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-task" id="ref-for-concept-task②">tasks</a> <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task②">queued</a> on its <a data-link-type="dfn" href="#dfn-client-message-queue" id="ref-for-dfn-client-message-queue②">client message queue</a> <em>must</em> be associated with its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object④">relevant settings object</a>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/nav-history-apis.html#concept-document-window" id="ref-for-concept-document-window">associated document</a>.</p>
@@ -1827,7 +1840,7 @@ <h4 class="heading settled" data-level="3.4.5" id="navigator-service-worker-getR
         <p>Run the following steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③">in parallel</a>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>registrations</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list">list</a>.</p>
+          <p>Let <var>registrations</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②">list</a>.</p>
          <li data-md>
           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate">For each</a> (<var>storage key</var>, <var>scope</var>) → <var>registration</var> of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map②">registration map</a>:</p>
           <ol>
@@ -1838,7 +1851,7 @@ <h4 class="heading settled" data-level="3.4.5" id="navigator-service-worker-getR
           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④">Queue a task</a> on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object①②">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①">responsible event loop</a>, using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②">DOM manipulation task source</a>, to run the following steps:</p>
           <ol>
            <li data-md>
-            <p>Let <var>registrationObjects</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①">list</a>.</p>
+            <p>Let <var>registrationObjects</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list③">list</a>.</p>
            <li data-md>
             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①">For each</a> <var>registration</var> of <var>registrations</var>:</p>
             <ol>
@@ -1920,15 +1933,15 @@ <h3 class="heading settled" data-level="3.5" id="document-context-events"><span
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerContainer" data-dfn-type="event" data-export id="service-worker-container-controllerchange-event"><code>controllerchange</code></dfn>
         <td><code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#event" id="ref-for-event②">Event</a></code>
-        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑤">service worker client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⓪">active service worker</a> changes. (See step 9.2 of the <a data-link-type="dfn" href="#activate" id="ref-for-activate">Activate</a> algorithm. The <a data-link-type="dfn" href="#dfn-skip-waiting-flag" id="ref-for-dfn-skip-waiting-flag">skip waiting flag</a> of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤④">service worker</a> causes <a data-link-type="dfn" href="#activate" id="ref-for-activate①">activation</a> of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③⑨">service worker registration</a> to occur while <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②②">service worker clients</a> are <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use">using</a> the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⓪">service worker registration</a>, <code class="idl"><a data-link-type="idl" href="#dom-serviceworkercontainer-controller" id="ref-for-dom-serviceworkercontainer-controller③">navigator.serviceWorker.controller</a></code> immediately reflects the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①①">active worker</a> as the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑤">service worker</a> that <a data-link-type="dfn" href="#dfn-control" id="ref-for-dfn-control②">controls</a> the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②③">service worker client</a>.)
+        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑤">service worker client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⓪">active service worker</a> changes. (See step 9.2 of the <a data-link-type="dfn" href="#activate" id="ref-for-activate">Activate</a> algorithm. The <a data-link-type="dfn" href="#dfn-skip-waiting-flag" id="ref-for-dfn-skip-waiting-flag">skip waiting flag</a> of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑤">service worker</a> causes <a data-link-type="dfn" href="#activate" id="ref-for-activate①">activation</a> of the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration③⑨">service worker registration</a> to occur while <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②②">service worker clients</a> are <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use">using</a> the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⓪">service worker registration</a>, <code class="idl"><a data-link-type="idl" href="#dom-serviceworkercontainer-controller" id="ref-for-dom-serviceworkercontainer-controller③">navigator.serviceWorker.controller</a></code> immediately reflects the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①①">active worker</a> as the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑥">service worker</a> that <a data-link-type="dfn" href="#dfn-control" id="ref-for-dfn-control②">controls</a> the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②③">service worker client</a>.)
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerContainer" data-dfn-type="event" data-export id="service-worker-container-message-event"><code>message</code></dfn>
         <td><code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#event" id="ref-for-event③">Event</a></code>
-        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑥">service worker client</a> receives a message from a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑥">service worker</a>. See <code class="idl"><a data-link-type="idl" href="#dom-client-postmessage-message-options" id="ref-for-dom-client-postmessage-message-options">postMessage(message, options)</a></code>.
+        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑥">service worker client</a> receives a message from a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑦">service worker</a>. See <code class="idl"><a data-link-type="idl" href="#dom-client-postmessage-message-options" id="ref-for-dom-client-postmessage-message-options">postMessage(message, options)</a></code>.
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerContainer" data-dfn-type="event" data-export id="service-worker-container-messageerror-event"><code>messageerror</code></dfn>
         <td><code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#event" id="ref-for-event④">Event</a></code>
-        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑦">service worker client</a> is sent a message that cannot be deserialized from a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑦">service worker</a>. See <code class="idl"><a data-link-type="idl" href="#dom-client-postmessage-message-options" id="ref-for-dom-client-postmessage-message-options①">postMessage(message, options)</a></code>.
+        <td>The <a data-link-type="dfn" href="#serviceworkercontainer-service-worker-client" id="ref-for-serviceworkercontainer-service-worker-client⑦">service worker client</a> is sent a message that cannot be deserialized from a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑧">service worker</a>. See <code class="idl"><a data-link-type="idl" href="#dom-client-postmessage-message-options" id="ref-for-dom-client-postmessage-message-options①">postMessage(message, options)</a></code>.
      </table>
     </section>
    </section>
@@ -2095,8 +2108,12 @@ <h3 class="heading settled" data-level="4.1" id="serviceworkerglobalscope-interf
   <c- b>attribute</c-> <a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/webappapis.html#eventhandler" id="ref-for-eventhandler⑨"><c- n>EventHandler</c-></a> <a class="idl-code" data-link-type="attribute" data-type="EventHandler" href="#dom-serviceworkerglobalscope-onmessageerror" id="ref-for-dom-serviceworkerglobalscope-onmessageerror"><c- g>onmessageerror</c-></a>;
 };
 </pre>
-     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑤">ServiceWorkerGlobalScope</a></code> object represents the global execution context of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑧">service worker</a>. A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑥">ServiceWorkerGlobalScope</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="dfn" data-export id="serviceworkerglobalscope-service-worker">service worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑨">service worker</a>). A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑦">ServiceWorkerGlobalScope</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="dfn" data-noexport id="serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag">force bypass cache for import scripts flag</dfn>. It is initially unset.</p>
-     <p class="note" role="note"><span class="marker">Note:</span> <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑧">ServiceWorkerGlobalScope</a></code> object provides generic, event-driven, time-limited script execution contexts that run at an origin. Once successfully <a data-link-type="dfn" href="#register" id="ref-for-register①">registered</a>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⓪">service worker</a> is started, kept alive and killed by their relationship to events, not <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②④">service worker clients</a>. Any type of synchronous requests must not be initiated inside of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥①">service worker</a>.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑤">ServiceWorkerGlobalScope</a></code> object represents the global execution context of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑤⑨">service worker</a>.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑥">ServiceWorkerGlobalScope</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="dfn" data-export id="serviceworkerglobalscope-service-worker">service worker</dfn> (a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⓪">service worker</a>).</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑦">ServiceWorkerGlobalScope</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="dfn" data-noexport id="serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag">force bypass cache for import scripts flag</dfn>. It is initially unset.</p>
+     <p>A <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑧">ServiceWorkerGlobalScope</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="dfn" data-noexport id="serviceworkerglobalscope-race-response-map">race response map</dfn> which is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map③">ordered map</a> where the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys②">keys</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request②">requests</a> and the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values②">values</a> are <a data-link-type="dfn" href="#dfn-race-response" id="ref-for-dfn-race-response">race response</a>.</p>
+     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-race-response">race response</dfn> is a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#struct" id="ref-for-struct①">struct</a> used to contain the network response when <code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-race-network-and-fetch-handler" id="ref-for-dom-routersourceenum-race-network-and-fetch-handler">"race-network-and-fetch-handler"</a></code> performs. It has a <dfn class="dfn-paneled" data-dfn-for="race response" data-dfn-type="dfn" data-noexport id="race-response-value">value</dfn>, which is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①">response</a>, "<code>pending</code>", or null.</p>
+     <p class="note" role="note"><span class="marker">Note:</span> <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑨">ServiceWorkerGlobalScope</a></code> object provides generic, event-driven, time-limited script execution contexts that run at an origin. Once successfully <a data-link-type="dfn" href="#register" id="ref-for-register①">registered</a>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥①">service worker</a> is started, kept alive and killed by their relationship to events, not <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②④">service worker clients</a>. Any type of synchronous requests must not be initiated inside of a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥②">service worker</a>.</p>
      <section>
       <h4 class="heading settled" data-level="4.1.1" id="service-worker-global-scope-clients"><span class="secno">4.1.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerglobalscope-clients" id="ref-for-dom-serviceworkerglobalscope-clients①">clients</a></code></span><a class="self-link" href="#service-worker-global-scope-clients"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="attribute" data-export id="dom-serviceworkerglobalscope-clients"><code>clients</code></dfn> getter steps are to return the <code class="idl"><a data-link-type="idl" href="#clients" id="ref-for-clients①">Clients</a></code> object that is associated with <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this②③">this</a>.</p>
@@ -2111,7 +2128,7 @@ <h4 class="heading settled" data-level="4.1.3" id="service-worker-global-scope-s
      </section>
      <section class="algorithm" data-algorithm="service-worker-global-scope-skipwaiting">
       <h4 class="heading settled" data-level="4.1.4" id="service-worker-global-scope-skipwaiting"><span class="secno">4.1.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-serviceworkerglobalscope-skipwaiting" id="ref-for-dom-serviceworkerglobalscope-skipwaiting①">skipWaiting()</a></code></span><a class="self-link" href="#service-worker-global-scope-skipwaiting"></a></h4>
-      <p class="note" role="note"><span class="marker">Note:</span> The <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerglobalscope-skipwaiting" id="ref-for-dom-serviceworkerglobalscope-skipwaiting②">skipWaiting()</a></code> method allows this <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥②">service worker</a> to progress from the <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration③">registration</a>'s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker④">waiting</a> position to <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑤">active</a> even while <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②⑤">service worker clients</a> are <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use①">using</a> the <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration④">registration</a>.</p>
+      <p class="note" role="note"><span class="marker">Note:</span> The <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerglobalscope-skipwaiting" id="ref-for-dom-serviceworkerglobalscope-skipwaiting②">skipWaiting()</a></code> method allows this <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥③">service worker</a> to progress from the <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration③">registration</a>'s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker④">waiting</a> position to <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑤">active</a> even while <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②⑤">service worker clients</a> are <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use①">using</a> the <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration④">registration</a>.</p>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="method" data-export id="dom-serviceworkerglobalscope-skipwaiting"><code>skipWaiting()</code></dfn> method steps are:</p>
       <ol>
        <li data-md>
@@ -2132,7 +2149,7 @@ <h4 class="heading settled" data-level="4.1.4" id="service-worker-global-scope-s
      </section>
      <section>
       <h4 class="heading settled" data-level="4.1.5" id="service-worker-global-scope-event-handlers"><span class="secno">4.1.5. </span><span class="content">Event handlers</span><a class="self-link" href="#service-worker-global-scope-event-handlers"></a></h4>
-      <p>The following are the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handlers" id="ref-for-event-handlers⑥">event handlers</a> (and their corresponding <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-event-type" id="ref-for-event-handler-event-type⑥">event handler event types</a>) that <em>must</em> be supported, as <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-idl-attributes" id="ref-for-event-handler-idl-attributes③">event handler IDL attributes</a>, by all objects implementing the <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope⑨">ServiceWorkerGlobalScope</a></code> interface:</p>
+      <p>The following are the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handlers" id="ref-for-event-handlers⑥">event handlers</a> (and their corresponding <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-event-type" id="ref-for-event-handler-event-type⑥">event handler event types</a>) that <em>must</em> be supported, as <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-idl-attributes" id="ref-for-event-handler-idl-attributes③">event handler IDL attributes</a>, by all objects implementing the <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⓪">ServiceWorkerGlobalScope</a></code> interface:</p>
       <table class="data">
        <thead>
         <tr>
@@ -2406,7 +2423,7 @@ <h3 class="heading settled" data-level="4.3" id="clients-interface"><span class=
   <dfn class="dfn-paneled idl-code" data-dfn-for="ClientType" data-dfn-type="enum-value" data-export id="dom-clienttype-all"><code><c- s>"all"</c-></code></dfn>
 };
 </pre>
-     <p>The user agent <em>must</em> create a <code class="idl"><a data-link-type="idl" href="#clients" id="ref-for-clients③">Clients</a></code> object when a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⓪">ServiceWorkerGlobalScope</a></code> object is created and associate it with that object.</p>
+     <p>The user agent <em>must</em> create a <code class="idl"><a data-link-type="idl" href="#clients" id="ref-for-clients③">Clients</a></code> object when a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①①">ServiceWorkerGlobalScope</a></code> object is created and associate it with that object.</p>
      <section class="algorithm" data-algorithm="clients-get">
       <h4 class="heading settled" data-level="4.3.1" id="clients-get"><span class="secno">4.3.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-clients-get" id="ref-for-dom-clients-get①">get(id)</a></code></span><a class="self-link" href="#clients-get"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="Clients" data-dfn-type="method" data-export id="dom-clients-get"><code>get(<var>id</var>)</code></dfn> method steps are:</p>
@@ -2443,7 +2460,7 @@ <h4 class="heading settled" data-level="4.3.2" id="clients-matchall"><span class
         <p>Run the following steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①①">in parallel</a>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>targetClients</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②">list</a>.</p>
+          <p>Let <var>targetClients</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list④">list</a>.</p>
          <li data-md>
           <p>For each <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client②⑨">service worker client</a> <var>client</var> where the result of running <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#obtain-a-storage-key" id="ref-for-obtain-a-storage-key④">obtain a storage key</a> given <var>client</var> <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key-equal" id="ref-for-storage-key-equal②">equals</a> the associated <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker①⓪">service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration⑦">containing service worker registration</a>'s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key⑤">storage key</a>:</p>
           <ol>
@@ -2457,9 +2474,9 @@ <h4 class="heading settled" data-level="4.3.2" id="clients-matchall"><span class
             <p>Add <var>client</var> to <var>targetClients</var>.</p>
           </ol>
          <li data-md>
-          <p>Let <var>matchedWindowData</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list③">list</a>.</p>
+          <p>Let <var>matchedWindowData</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑤">list</a>.</p>
          <li data-md>
-          <p>Let <var>matchedClients</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list④">list</a>.</p>
+          <p>Let <var>matchedClients</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑥">list</a>.</p>
          <li data-md>
           <p>For each <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③⓪">service worker client</a> <var>client</var> in <var>targetClients</var>:</p>
           <ol>
@@ -2467,7 +2484,7 @@ <h4 class="heading settled" data-level="4.3.2" id="clients-matchall"><span class
             <p>If <var>options</var>["<code class="idl"><a data-link-type="idl" href="#dom-clientqueryoptions-type" id="ref-for-dom-clientqueryoptions-type">type</a></code>"] is <code class="idl"><a data-link-type="idl" href="#dom-clienttype-window" id="ref-for-dom-clienttype-window②">"window"</a></code> or <code class="idl"><a data-link-type="idl" href="#dom-clienttype-all" id="ref-for-dom-clienttype-all">"all"</a></code>, and <var>client</var> is not an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object⑧">environment settings object</a> or is a <a data-link-type="dfn" href="#dfn-window-client" id="ref-for-dfn-window-client①⓪">window client</a>, then:</p>
             <ol>
              <li data-md>
-              <p>Let <var>windowData</var> be «[ "client" → <var>client</var>, "ancestorOriginsList" → a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑤">list</a> ]».</p>
+              <p>Let <var>windowData</var> be «[ "client" → <var>client</var>, "ancestorOriginsList" → a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑦">list</a> ]».</p>
              <li data-md>
               <p>Let <var>browsingContext</var> be null.</p>
              <li data-md>
@@ -2513,7 +2530,7 @@ <h4 class="heading settled" data-level="4.3.2" id="clients-matchall"><span class
           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task①②">Queue a task</a> to run the following steps on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object①⑧">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop④">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source⑦">DOM manipulation task source</a>:</p>
           <ol>
            <li data-md>
-            <p>Let <var>clientObjects</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑥">list</a>.</p>
+            <p>Let <var>clientObjects</var> be a new <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑧">list</a>.</p>
            <li data-md>
             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②">For each</a> <var>windowData</var> in <var>matchedWindowData</var>:</p>
             <ol>
@@ -2661,7 +2678,7 @@ <h3 class="heading settled" data-level="4.4" id="extendableevent-interface"><spa
      <p>An <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent③">ExtendableEvent</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ExtendableEvent" data-dfn-type="dfn" data-noexport id="extendableevent-pending-promises-count">pending promises count</dfn> (the number of pending promises in the <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises">extend lifetime promises</a>). It is initially set to zero.</p>
      <p>An <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent④">ExtendableEvent</a></code> object has an associated <dfn class="dfn-paneled" data-dfn-for="ExtendableEvent" data-dfn-type="dfn" data-export id="extendableevent-timed-out-flag">timed out flag</dfn>. It is initially unset, and is set after an optional user agent imposed delay if the <a data-link-type="dfn" href="#extendableevent-pending-promises-count" id="ref-for-extendableevent-pending-promises-count">pending promises count</a> is greater than zero.</p>
      <p>An <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent⑤">ExtendableEvent</a></code> object is said to be <dfn class="dfn-paneled" data-dfn-for="ExtendableEvent" data-dfn-type="dfn" data-export id="extendableevent-active">active</dfn> when its <a data-link-type="dfn" href="#extendableevent-timed-out-flag" id="ref-for-extendableevent-timed-out-flag">timed out flag</a> is unset and either its <a data-link-type="dfn" href="#extendableevent-pending-promises-count" id="ref-for-extendableevent-pending-promises-count①">pending promises count</a> is greater than zero or its <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#dispatch-flag" id="ref-for-dispatch-flag">dispatch flag</a> is set.</p>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥③">Service workers</a> have two <a data-link-type="dfn" href="#dfn-lifecycle-events" id="ref-for-dfn-lifecycle-events">lifecycle events</a>, <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event②">install</a></code> and <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event②">activate</a></code>. <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥④">Service workers</a> use the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent⑥">ExtendableEvent</a></code> interface for <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event③">activate</a></code> event and <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event③">install</a></code> event.</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥④">Service workers</a> have two <a data-link-type="dfn" href="#dfn-lifecycle-events" id="ref-for-dfn-lifecycle-events">lifecycle events</a>, <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event②">install</a></code> and <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event②">activate</a></code>. <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑤">Service workers</a> use the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent⑥">ExtendableEvent</a></code> interface for <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event③">activate</a></code> event and <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event③">install</a></code> event.</p>
      <p><a href="#extensibility">Service worker extensions</a> that <a href="#extension-to-service-worker-global-scope">define event handlers</a> <em>may</em> also use or extend the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent⑦">ExtendableEvent</a></code> interface.</p>
      <section class="algorithm" data-algorithm="wait-until-method">
       <h4 class="heading settled" data-level="4.4.1" id="wait-until-method"><span class="secno">4.4.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendableevent-waituntil" id="ref-for-dom-extendableevent-waituntil①">event.waitUntil(f)</a></code></span><a class="self-link" href="#wait-until-method"></a></h4>
@@ -2698,37 +2715,101 @@ <h4 class="heading settled" data-level="4.4.1" id="wait-until-method"><span clas
           </ol>
         </ol>
       </ol>
-      <p>The user agent <em>should not</em> <a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker②">terminate</a> a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑤">service worker</a> if <a data-link-type="dfn" href="#service-worker-has-no-pending-events" id="ref-for-service-worker-has-no-pending-events">Service Worker Has No Pending Events</a> returns false for that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑥">service worker</a>.</p>
+      <p>The user agent <em>should not</em> <a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker②">terminate</a> a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑥">service worker</a> if <a data-link-type="dfn" href="#service-worker-has-no-pending-events" id="ref-for-service-worker-has-no-pending-events">Service Worker Has No Pending Events</a> returns false for that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑦">service worker</a>.</p>
      </section>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑦">Service workers</a> and <a href="#extensibility">extensions</a> that <a href="#extension-to-service-worker-global-scope">define event handlers</a> <em>may</em> define their own behaviors, allowing the <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises②">extend lifetime promises</a> to suggest operation length, and the rejected state of any of the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②①">promise</a> in <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises③">extend lifetime promises</a> to suggest operation failure.</p>
-     <p class="note" role="note"><span class="marker">Note:</span> <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑧">Service workers</a> delay treating the <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker⑥">installing worker</a> as "<code>installed</code>" until all the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②②">promises</a> in the <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event④">install</a></code> event’s <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises④">extend lifetime promises</a> resolve successfully. (See the relevant <a href="#install-settle-step">Install algorithm step</a>.) If any of the promises rejects, the installation fails. This is primarily used to ensure that a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑨">service worker</a> is not considered "<code>installed</code>" until all of the core caches it depends on are populated. Likewise, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⓪">service workers</a> delay treating the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑦">active worker</a> as "<code>activated</code>" until all the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②③">promises</a> in the <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event④">activate</a></code> event’s <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises⑤">extend lifetime promises</a> settle. (See the relevant <a href="#activate-settle-step">Activate algorithm step</a>.) This is primarily used to ensure that any <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①">functional events</a> are not dispatched to the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦①">service worker</a> until it upgrades database schemas and deletes the outdated cache entries.</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑧">Service workers</a> and <a href="#extensibility">extensions</a> that <a href="#extension-to-service-worker-global-scope">define event handlers</a> <em>may</em> define their own behaviors, allowing the <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises②">extend lifetime promises</a> to suggest operation length, and the rejected state of any of the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②①">promise</a> in <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises③">extend lifetime promises</a> to suggest operation failure.</p>
+     <p class="note" role="note"><span class="marker">Note:</span> <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑥⑨">Service workers</a> delay treating the <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker⑥">installing worker</a> as "<code>installed</code>" until all the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②②">promises</a> in the <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event④">install</a></code> event’s <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises④">extend lifetime promises</a> resolve successfully. (See the relevant <a href="#install-settle-step">Install algorithm step</a>.) If any of the promises rejects, the installation fails. This is primarily used to ensure that a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⓪">service worker</a> is not considered "<code>installed</code>" until all of the core caches it depends on are populated. Likewise, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦①">service workers</a> delay treating the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑦">active worker</a> as "<code>activated</code>" until all the <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②③">promises</a> in the <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-activate-event" id="ref-for-service-worker-global-scope-activate-event④">activate</a></code> event’s <a data-link-type="dfn" href="#extendableevent-extend-lifetime-promises" id="ref-for-extendableevent-extend-lifetime-promises⑤">extend lifetime promises</a> settle. (See the relevant <a href="#activate-settle-step">Activate algorithm step</a>.) This is primarily used to ensure that any <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①">functional events</a> are not dispatched to the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦②">service worker</a> until it upgrades database schemas and deletes the outdated cache entries.</p>
     </section>
     <section>
-     <h3 class="heading settled" data-level="4.5" id="fetchevent-interface"><span class="secno">4.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent">FetchEvent</a></code></span><a class="self-link" href="#fetchevent-interface"></a></h3>
+     <h3 class="heading settled" data-level="4.5" id="installevent-interface"><span class="secno">4.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#installevent" id="ref-for-installevent">InstallEvent</a></code></span><a class="self-link" href="#installevent-interface"></a></h3>
 <pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed⑨"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
-<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="fetchevent"><code><c- g>FetchEvent</c-></code></dfn> : <a data-link-type="idl-name" href="#extendableevent" id="ref-for-extendableevent⑨"><c- n>ExtendableEvent</c-></a> {
-  <dfn class="idl-code" data-dfn-for="FetchEvent" data-dfn-type="constructor" data-export data-lt="FetchEvent(type, eventInitDict)|constructor(type, eventInitDict)" id="dom-fetchevent-fetchevent"><code><c- g>constructor</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent"></a></dfn>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString③"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="FetchEvent/FetchEvent(type, eventInitDict), FetchEvent/constructor(type, eventInitDict)" data-dfn-type="argument" data-export id="dom-fetchevent-fetchevent-type-eventinitdict-type"><code><c- g>type</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent-type-eventinitdict-type"></a></dfn>, <a data-link-type="idl-name" href="#dictdef-fetcheventinit" id="ref-for-dictdef-fetcheventinit"><c- n>FetchEventInit</c-></a> <dfn class="idl-code" data-dfn-for="FetchEvent/FetchEvent(type, eventInitDict), FetchEvent/constructor(type, eventInitDict)" data-dfn-type="argument" data-export id="dom-fetchevent-fetchevent-type-eventinitdict-eventinitdict"><code><c- g>eventInitDict</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent-type-eventinitdict-eventinitdict"></a></dfn>);
+<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="installevent"><code><c- g>InstallEvent</c-></code></dfn> : <a data-link-type="idl-name" href="#extendableevent" id="ref-for-extendableevent⑨"><c- n>ExtendableEvent</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise①⑧"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①④"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-installevent-addroutes" id="ref-for-dom-installevent-addroutes"><c- g>addRoutes</c-></a>((<a data-link-type="idl-name" href="#dictdef-routerrule" id="ref-for-dictdef-routerrule①"><c- n>RouterRule</c-></a> <c- b>or</c-> <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence②"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-routerrule" id="ref-for-dictdef-routerrule②"><c- n>RouterRule</c-></a>>) <dfn class="idl-code" data-dfn-for="InstallEvent/addRoutes(rules)" data-dfn-type="argument" data-export id="dom-installevent-addroutes-rules-rules"><code><c- g>rules</c-></code><a class="self-link" href="#dom-installevent-addroutes-rules-rules"></a></dfn>);
+};
+
+<c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-routerrule"><code><c- g>RouterRule</c-></code></dfn> {
+  <c- b>required</c-> <a data-link-type="idl-name" href="#dictdef-routercondition" id="ref-for-dictdef-routercondition"><c- n>RouterCondition</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterRule" data-dfn-type="dict-member" data-export data-type="RouterCondition " id="dom-routerrule-condition"><code><c- g>condition</c-></code></dfn>;
+  <c- b>required</c-> <a data-link-type="idl-name" href="#typedefdef-routersource" id="ref-for-typedefdef-routersource"><c- n>RouterSource</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterRule" data-dfn-type="dict-member" data-export data-type="RouterSource " id="dom-routerrule-source"><code><c- g>source</c-></code></dfn>;
+};
+
+<c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-routercondition"><code><c- g>RouterCondition</c-></code></dfn> {
+  <a data-link-type="idl-name" href="https://urlpattern.spec.whatwg.org/#typedefdef-urlpatterncompatible" id="ref-for-typedefdef-urlpatterncompatible"><c- n>URLPatternCompatible</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-type="URLPatternCompatible " id="dom-routercondition-urlpattern"><code><c- g>urlPattern</c-></code></dfn>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-ByteString" id="ref-for-idl-ByteString②"><c- b>ByteString</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-type="ByteString " id="dom-routercondition-requestmethod"><code><c- g>requestMethod</c-></code></dfn>;
+  <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestmode" id="ref-for-requestmode"><c- n>RequestMode</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-type="RequestMode " id="dom-routercondition-requestmode"><code><c- g>requestMode</c-></code></dfn>;
+  <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestdestination" id="ref-for-requestdestination"><c- n>RequestDestination</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-type="RequestDestination " id="dom-routercondition-requestdestination"><code><c- g>requestDestination</c-></code></dfn>;
+  <a data-link-type="idl-name" href="#enumdef-runningstatus" id="ref-for-enumdef-runningstatus"><c- n>RunningStatus</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-type="RunningStatus " id="dom-routercondition-runningstatus"><code><c- g>runningStatus</c-></code></dfn>;
+
+  <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence③"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-routercondition" id="ref-for-dictdef-routercondition①"><c- n>RouterCondition</c-></a>> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterCondition" data-dfn-type="dict-member" data-export data-lt="or" data-type="sequence<RouterCondition> " id="dom-routercondition-or"><code><c- g>_or</c-></code></dfn>;
+};
+
+<c- b>typedef</c-> (<a data-link-type="idl-name" href="#dictdef-routersourcedict" id="ref-for-dictdef-routersourcedict"><c- n>RouterSourceDict</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="#enumdef-routersourceenum" id="ref-for-enumdef-routersourceenum"><c- n>RouterSourceEnum</c-></a>) <dfn class="dfn-paneled idl-code" data-dfn-type="typedef" data-export id="typedefdef-routersource"><code><c- g>RouterSource</c-></code></dfn>;
+
+<c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-routersourcedict"><code><c- g>RouterSourceDict</c-></code></dfn> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString③"><c- b>DOMString</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="RouterSourceDict" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-routersourcedict-cachename"><code><c- g>cacheName</c-></code></dfn>;
+};
+
+<c- b>enum</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="enum" data-export id="enumdef-runningstatus"><code><c- g>RunningStatus</c-></code></dfn> { <dfn class="dfn-paneled idl-code" data-dfn-for="RunningStatus" data-dfn-type="enum-value" data-export id="dom-runningstatus-running"><code><c- s>"running"</c-></code></dfn>, <dfn class="dfn-paneled idl-code" data-dfn-for="RunningStatus" data-dfn-type="enum-value" data-export id="dom-runningstatus-not-running"><code><c- s>"not-running"</c-></code></dfn> };
+<c- b>enum</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="enum" data-export id="enumdef-routersourceenum"><code><c- g>RouterSourceEnum</c-></code></dfn> {
+  <dfn class="dfn-paneled idl-code" data-dfn-for="RouterSourceEnum" data-dfn-type="enum-value" data-export id="dom-routersourceenum-cache"><code><c- s>"cache"</c-></code></dfn>,
+  <dfn class="dfn-paneled idl-code" data-dfn-for="RouterSourceEnum" data-dfn-type="enum-value" data-export id="dom-routersourceenum-fetch-event"><code><c- s>"fetch-event"</c-></code></dfn>,
+  <dfn class="dfn-paneled idl-code" data-dfn-for="RouterSourceEnum" data-dfn-type="enum-value" data-export id="dom-routersourceenum-network"><code><c- s>"network"</c-></code></dfn>,
+  <dfn class="dfn-paneled idl-code" data-dfn-for="RouterSourceEnum" data-dfn-type="enum-value" data-export id="dom-routersourceenum-race-network-and-fetch-handler"><code><c- s>"race-network-and-fetch-handler"</c-></code></dfn>
+};
+</pre>
+     <section>
+      <h4 class="heading settled" data-level="4.5.1" id="register-router-method"><span class="secno">4.5.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-installevent-addroutes" id="ref-for-dom-installevent-addroutes①">event.addRoutes(rules)</a></code></span><a class="self-link" href="#register-router-method"></a></h4>
+      <p class="note" role="note"><span class="marker">Note:</span> <code class="idl"><a data-link-type="idl" href="#dom-installevent-addroutes" id="ref-for-dom-installevent-addroutes②">addRoutes(rules)</a></code> registers rules for this service worker to offload simple tasks that the fetch event handler ordinarily does.</p>
+      <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="InstallEvent" data-dfn-type="method" data-export id="dom-installevent-addroutes"><code>addRoutes(<var>rules</var>)</code></dfn> method steps are:</p>
+      <ol>
+       <li data-md>
+        <p>Let <var>serviceWorker</var> be the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#current-global-object" id="ref-for-current-global-object③">current global object</a>'s associated <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②⓪">service worker</a>.</p>
+       <li data-md>
+        <p>Let <var>routerRules</var> be a copy of <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-list-of-router-rules" id="ref-for-service-worker-list-of-router-rules">list of router rules</a>.</p>
+       <li data-md>
+        <p>If <var>rules</var> is a <code class="idl"><a data-link-type="idl" href="#dictdef-routerrule" id="ref-for-dictdef-routerrule③">RouterRule</a></code> dictionary, set <var>rules</var> to « <var>rules</var> ».</p>
+       <li data-md>
+        <p>For each <var>rule</var> of <var>rules</var>:</p>
+        <ol>
+         <li data-md>
+          <p>If running the <a data-link-type="dfn" href="#verify-router-condition" id="ref-for-verify-router-condition">Verify Router Condition</a> algorithm with <var>rule</var>["<code class="idl"><a data-link-type="idl" href="#dom-routerrule-condition" id="ref-for-dom-routerrule-condition">condition</a></code>"] and <var>serviceWorker</var> returns false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with②">a promise rejected with</a> a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-typeerror" id="ref-for-exceptiondef-typeerror">TypeError</a></code>.</p>
+         <li data-md>
+          <p>Append <var>rule</var> to <var>routerRules</var>.</p>
+        </ol>
+       <li data-md>
+        <p>If <var>routerRules</var> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain">contains</a> a <code class="idl"><a data-link-type="idl" href="#dictdef-routerrule" id="ref-for-dictdef-routerrule④">RouterRule</a></code> whose <code class="idl"><a data-link-type="idl" href="#dom-routerrule-source" id="ref-for-dom-routerrule-source">source</a></code> is "<code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-fetch-event" id="ref-for-dom-routersourceenum-fetch-event">fetch-event</a></code>" and <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle">set of event types to handle</a> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain①">contain</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event③">fetch</a></code>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with③">a promise rejected with</a> a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-typeerror" id="ref-for-exceptiondef-typeerror①">TypeError</a></code>.</p>
+       <li data-md>
+        <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-list-of-router-rules" id="ref-for-service-worker-list-of-router-rules①">list of router rules</a> to <var>routerRules</var>.</p>
+       <li data-md>
+        <p>Return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with">a promise resolved with</a> undefined.</p>
+      </ol>
+     </section>
+    </section>
+    <section>
+     <h3 class="heading settled" data-level="4.6" id="fetchevent-interface"><span class="secno">4.6. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent">FetchEvent</a></code></span><a class="self-link" href="#fetchevent-interface"></a></h3>
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①⓪"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
+<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="fetchevent"><code><c- g>FetchEvent</c-></code></dfn> : <a data-link-type="idl-name" href="#extendableevent" id="ref-for-extendableevent①⓪"><c- n>ExtendableEvent</c-></a> {
+  <dfn class="idl-code" data-dfn-for="FetchEvent" data-dfn-type="constructor" data-export data-lt="FetchEvent(type, eventInitDict)|constructor(type, eventInitDict)" id="dom-fetchevent-fetchevent"><code><c- g>constructor</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent"></a></dfn>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString④"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="FetchEvent/FetchEvent(type, eventInitDict), FetchEvent/constructor(type, eventInitDict)" data-dfn-type="argument" data-export id="dom-fetchevent-fetchevent-type-eventinitdict-type"><code><c- g>type</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent-type-eventinitdict-type"></a></dfn>, <a data-link-type="idl-name" href="#dictdef-fetcheventinit" id="ref-for-dictdef-fetcheventinit"><c- n>FetchEventInit</c-></a> <dfn class="idl-code" data-dfn-for="FetchEvent/FetchEvent(type, eventInitDict), FetchEvent/constructor(type, eventInitDict)" data-dfn-type="argument" data-export id="dom-fetchevent-fetchevent-type-eventinitdict-eventinitdict"><code><c- g>eventInitDict</c-></code><a class="self-link" href="#dom-fetchevent-fetchevent-type-eventinitdict-eventinitdict"></a></dfn>);
   [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SameObject" id="ref-for-SameObject⑦"><c- g>SameObject</c-></a>] <c- b>readonly</c-> <c- b>attribute</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request"><c- n>Request</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="Request" href="#dom-fetchevent-request" id="ref-for-dom-fetchevent-request"><c- g>request</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise①⑧"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑤"><c- b>any</c-></a>> <a class="idl-code" data-link-type="attribute" data-readonly data-type="Promise<any>" href="#dom-fetchevent-preloadresponse" id="ref-for-dom-fetchevent-preloadresponse"><c- g>preloadResponse</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString④"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-clientid" id="ref-for-dom-fetchevent-clientid"><c- g>clientId</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑤"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid"><c- g>resultingClientId</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑥"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-replacesclientid" id="ref-for-dom-fetchevent-replacesclientid"><c- g>replacesClientId</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise①⑨"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①④"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="attribute" data-readonly data-type="Promise<undefined>" href="#dom-fetchevent-handled" id="ref-for-dom-fetchevent-handled"><c- g>handled</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise①⑨"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑤"><c- b>any</c-></a>> <a class="idl-code" data-link-type="attribute" data-readonly data-type="Promise<any>" href="#dom-fetchevent-preloadresponse" id="ref-for-dom-fetchevent-preloadresponse"><c- g>preloadResponse</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑤"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-clientid" id="ref-for-dom-fetchevent-clientid"><c- g>clientId</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑥"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid"><c- g>resultingClientId</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑦"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-fetchevent-replacesclientid" id="ref-for-dom-fetchevent-replacesclientid"><c- g>replacesClientId</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⓪"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑤"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="attribute" data-readonly data-type="Promise<undefined>" href="#dom-fetchevent-handled" id="ref-for-dom-fetchevent-handled"><c- g>handled</c-></a>;
 
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑤"><c- b>undefined</c-></a> <a class="idl-code" data-link-type="method" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith"><c- g>respondWith</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⓪"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response"><c- n>Response</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEvent/respondWith(r)" data-dfn-type="argument" data-export id="dom-fetchevent-respondwith-r-r"><code><c- g>r</c-></code><a class="self-link" href="#dom-fetchevent-respondwith-r-r"></a></dfn>);
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑥"><c- b>undefined</c-></a> <a class="idl-code" data-link-type="method" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith"><c- g>respondWith</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②①"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response"><c- n>Response</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEvent/respondWith(r)" data-dfn-type="argument" data-export id="dom-fetchevent-respondwith-r-r"><code><c- g>r</c-></code><a class="self-link" href="#dom-fetchevent-respondwith-r-r"></a></dfn>);
 };
 </pre>
 <pre class="idl highlight def" id="fetch-event-init-dictionary"><c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-fetcheventinit"><code><c- g>FetchEventInit</c-></code></dfn> : <a data-link-type="idl-name" href="#dictdef-extendableeventinit" id="ref-for-dictdef-extendableeventinit①"><c- n>ExtendableEventInit</c-></a> {
   <c- b>required</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①"><c- n>Request</c-></a> <dfn class="idl-code" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="Request " id="dom-fetcheventinit-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-fetcheventinit-request"></a></dfn>;
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②①"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑥"><c- b>any</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="Promise<any> " id="dom-fetcheventinit-preloadresponse"><code><c- g>preloadResponse</c-></code><a class="self-link" href="#dom-fetcheventinit-preloadresponse"></a></dfn>;
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑦"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-clientid"><code><c- g>clientId</c-></code><a class="self-link" href="#dom-fetcheventinit-clientid"></a></dfn> = "";
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑧"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-resultingclientid"><code><c- g>resultingClientId</c-></code><a class="self-link" href="#dom-fetcheventinit-resultingclientid"></a></dfn> = "";
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑨"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-replacesclientid"><code><c- g>replacesClientId</c-></code><a class="self-link" href="#dom-fetcheventinit-replacesclientid"></a></dfn> = "";
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②②"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑥"><c- b>undefined</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="Promise<undefined> " id="dom-fetcheventinit-handled"><code><c- g>handled</c-></code><a class="self-link" href="#dom-fetcheventinit-handled"></a></dfn>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②②"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑥"><c- b>any</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="Promise<any> " id="dom-fetcheventinit-preloadresponse"><code><c- g>preloadResponse</c-></code><a class="self-link" href="#dom-fetcheventinit-preloadresponse"></a></dfn>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑧"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-clientid"><code><c- g>clientId</c-></code><a class="self-link" href="#dom-fetcheventinit-clientid"></a></dfn> = "";
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString⑨"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-resultingclientid"><code><c- g>resultingClientId</c-></code><a class="self-link" href="#dom-fetcheventinit-resultingclientid"></a></dfn> = "";
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⓪"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-fetcheventinit-replacesclientid"><code><c- g>replacesClientId</c-></code><a class="self-link" href="#dom-fetcheventinit-replacesclientid"></a></dfn> = "";
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②③"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑦"><c- b>undefined</c-></a>> <dfn class="idl-code" data-dfn-for="FetchEventInit" data-dfn-type="dict-member" data-export data-type="Promise<undefined> " id="dom-fetcheventinit-handled"><code><c- g>handled</c-></code><a class="self-link" href="#dom-fetcheventinit-handled"></a></dfn>;
 };
 </pre>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦②">Service workers</a> have an essential <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events②">functional event</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event③">fetch</a></code>. For <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event④">fetch</a></code> event, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦③">service workers</a> use the <code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent①">FetchEvent</a></code> interface which extends the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⓪">ExtendableEvent</a></code> interface.</p>
-     <p>Each event using <code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent②">FetchEvent</a></code> interface has an associated <dfn class="dfn-paneled" data-dfn-for="FetchEvent" data-dfn-type="dfn" data-noexport id="fetchevent-potential-response">potential response</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①">response</a>), initially set to null, and the following associated flags that are initially unset:</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦③">Service workers</a> have an essential <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events②">functional event</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event④">fetch</a></code>. For <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event⑤">fetch</a></code> event, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦④">service workers</a> use the <code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent①">FetchEvent</a></code> interface which extends the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①①">ExtendableEvent</a></code> interface.</p>
+     <p>Each event using <code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent②">FetchEvent</a></code> interface has an associated <dfn class="dfn-paneled" data-dfn-for="FetchEvent" data-dfn-type="dfn" data-noexport id="fetchevent-potential-response">potential response</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response②">response</a>), initially set to null, and the following associated flags that are initially unset:</p>
      <ul>
       <li data-md>
        <p><dfn class="dfn-paneled" data-dfn-for="FetchEvent" data-dfn-type="dfn" data-noexport id="fetchevent-wait-to-respond-flag">wait to respond flag</dfn></p>
@@ -2738,31 +2819,31 @@ <h3 class="heading settled" data-level="4.5" id="fetchevent-interface"><span cla
        <p><dfn class="dfn-paneled" data-dfn-for="FetchEvent" data-dfn-type="dfn" data-noexport id="fetchevent-respond-with-error-flag">respond-with error flag</dfn></p>
      </ul>
      <section>
-      <h4 class="heading settled" data-level="4.5.1" id="fetch-event-request"><span class="secno">4.5.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-request" id="ref-for-dom-fetchevent-request①">event.request</a></code></span><a class="self-link" href="#fetch-event-request"></a></h4>
+      <h4 class="heading settled" data-level="4.6.1" id="fetch-event-request"><span class="secno">4.6.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-request" id="ref-for-dom-fetchevent-request①">event.request</a></code></span><a class="self-link" href="#fetch-event-request"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-request"><code>request</code></dfn> attribute <em>must</em> return the value it was initialized to.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.5.2" id="fetch-event-preloadresponse"><span class="secno">4.5.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-preloadresponse" id="ref-for-dom-fetchevent-preloadresponse①">event.preloadResponse</a></code></span><a class="self-link" href="#fetch-event-preloadresponse"></a></h4>
-      <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-preloadresponse"><code>preloadResponse</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event②">event</a> is created the attribute <em>must</em> be initialized to <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with">a promise resolved with</a> undefined.</p>
+      <h4 class="heading settled" data-level="4.6.2" id="fetch-event-preloadresponse"><span class="secno">4.6.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-preloadresponse" id="ref-for-dom-fetchevent-preloadresponse①">event.preloadResponse</a></code></span><a class="self-link" href="#fetch-event-preloadresponse"></a></h4>
+      <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-preloadresponse"><code>preloadResponse</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event②">event</a> is created the attribute <em>must</em> be initialized to <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with①">a promise resolved with</a> undefined.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.5.3" id="fetch-event-clientid"><span class="secno">4.5.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-clientid" id="ref-for-dom-fetchevent-clientid①">event.clientId</a></code></span><a class="self-link" href="#fetch-event-clientid"></a></h4>
+      <h4 class="heading settled" data-level="4.6.3" id="fetch-event-clientid"><span class="secno">4.6.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-clientid" id="ref-for-dom-fetchevent-clientid①">event.clientId</a></code></span><a class="self-link" href="#fetch-event-clientid"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-clientid"><code>clientId</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event③">event</a> is created the attribute <em>must</em> be initialized to the empty string.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.5.4" id="fetch-event-resultingclientid"><span class="secno">4.5.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid①">event.resultingClientId</a></code></span><a class="self-link" href="#fetch-event-resultingclientid"></a></h4>
+      <h4 class="heading settled" data-level="4.6.4" id="fetch-event-resultingclientid"><span class="secno">4.6.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid①">event.resultingClientId</a></code></span><a class="self-link" href="#fetch-event-resultingclientid"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-resultingclientid"><code>resultingClientId</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event④">event</a> is created the attribute <em>must</em> be initialized to the empty string.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.5.5" id="fetch-event-replacesClientId"><span class="secno">4.5.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-replacesclientid" id="ref-for-dom-fetchevent-replacesclientid①">event.replacesClientId</a></code></span><a class="self-link" href="#fetch-event-replacesClientId"></a></h4>
+      <h4 class="heading settled" data-level="4.6.5" id="fetch-event-replacesClientId"><span class="secno">4.6.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-replacesclientid" id="ref-for-dom-fetchevent-replacesclientid①">event.replacesClientId</a></code></span><a class="self-link" href="#fetch-event-replacesClientId"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-replacesclientid"><code>replacesClientId</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event⑤">event</a> is created the attribute <em>must</em> be initialized to the empty string.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.5.6" id="fetch-event-handled"><span class="secno">4.5.6. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-handled" id="ref-for-dom-fetchevent-handled①">event.handled</a></code></span><a class="self-link" href="#fetch-event-handled"></a></h4>
+      <h4 class="heading settled" data-level="4.6.6" id="fetch-event-handled"><span class="secno">4.6.6. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-handled" id="ref-for-dom-fetchevent-handled①">event.handled</a></code></span><a class="self-link" href="#fetch-event-handled"></a></h4>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="attribute" data-export id="dom-fetchevent-handled"><code>handled</code></dfn> attribute <em>must</em> return the value it was initialized to. When an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event⑥">event</a> is created the attribute <em>must</em> be initialized to a pending <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②④">promise</a>.</p>
      </section>
      <section class="algorithm" data-algorithm="fetch-event-respondwith">
-      <h4 class="heading settled" data-level="4.5.7" id="fetch-event-respondwith"><span class="secno">4.5.7. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith①">event.respondWith(r)</a></code></span><a class="self-link" href="#fetch-event-respondwith"></a></h4>
+      <h4 class="heading settled" data-level="4.6.7" id="fetch-event-respondwith"><span class="secno">4.6.7. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith①">event.respondWith(r)</a></code></span><a class="self-link" href="#fetch-event-respondwith"></a></h4>
       <p class="note" role="note"><span class="marker">Note:</span> Developers can set the argument <var>r</var> with either a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②⑤">promise</a> that resolves with a <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①">Response</a></code> object or a <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response②">Response</a></code> object (which is automatically cast to a promise). Otherwise, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error">network error</a> is returned to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch②">Fetch</a>. Renderer-side security checks about tainting for cross-origin content are tied to the types of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response" id="ref-for-concept-filtered-response">filtered responses</a> defined in <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch③">Fetch</a>.</p>
       <p><dfn class="dfn-paneled idl-code" data-dfn-for="FetchEvent" data-dfn-type="method" data-export id="dom-fetchevent-respondwith"><code>respondWith(<var>r</var>)</code></dfn> method steps are:</p>
       <ol>
@@ -2843,7 +2924,7 @@ <h4 class="heading settled" data-level="4.5.7" id="fetch-event-respondwith"><spa
                  <dd data-md>
                   <ol>
                    <li data-md>
-                    <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-error" id="ref-for-readablestream-error">error</a> <var>newStream</var> with a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-typeerror" id="ref-for-exceptiondef-typeerror">TypeError</a></code>.</p>
+                    <p><a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-error" id="ref-for-readablestream-error">error</a> <var>newStream</var> with a <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#exceptiondef-typeerror" id="ref-for-exceptiondef-typeerror②">TypeError</a></code>.</p>
                   </ol>
                 </dl>
                <li data-md>
@@ -2892,13 +2973,13 @@ <h4 class="heading settled" data-level="4.5.7" id="fetch-event-respondwith"><spa
      </section>
     </section>
     <section>
-     <h3 class="heading settled" data-level="4.6" id="extendablemessageevent-interface"><span class="secno">4.6. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#extendablemessageevent" id="ref-for-extendablemessageevent②">ExtendableMessageEvent</a></code></span><a class="self-link" href="#extendablemessageevent-interface"></a></h3>
-<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①⓪"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
-<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="extendablemessageevent"><code><c- g>ExtendableMessageEvent</c-></code></dfn> : <a data-link-type="idl-name" href="#extendableevent" id="ref-for-extendableevent①①"><c- n>ExtendableEvent</c-></a> {
-  <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="constructor" data-export data-lt="ExtendableMessageEvent(type, eventInitDict)|constructor(type, eventInitDict)|ExtendableMessageEvent(type)|constructor(type)" id="dom-extendablemessageevent-extendablemessageevent"><code><c- g>constructor</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent"></a></dfn>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⓪"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent/ExtendableMessageEvent(type, eventInitDict), ExtendableMessageEvent/constructor(type, eventInitDict), ExtendableMessageEvent/ExtendableMessageEvent(type), ExtendableMessageEvent/constructor(type)" data-dfn-type="argument" data-export id="dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-type"><code><c- g>type</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-type"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-extendablemessageeventinit" id="ref-for-dictdef-extendablemessageeventinit"><c- n>ExtendableMessageEventInit</c-></a> <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent/ExtendableMessageEvent(type, eventInitDict), ExtendableMessageEvent/constructor(type, eventInitDict), ExtendableMessageEvent/ExtendableMessageEvent(type), ExtendableMessageEvent/constructor(type)" data-dfn-type="argument" data-export id="dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-eventinitdict"><code><c- g>eventInitDict</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-eventinitdict"></a></dfn> = {});
+     <h3 class="heading settled" data-level="4.7" id="extendablemessageevent-interface"><span class="secno">4.7. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#extendablemessageevent" id="ref-for-extendablemessageevent②">ExtendableMessageEvent</a></code></span><a class="self-link" href="#extendablemessageevent-interface"></a></h3>
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①①"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
+<c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="extendablemessageevent"><code><c- g>ExtendableMessageEvent</c-></code></dfn> : <a data-link-type="idl-name" href="#extendableevent" id="ref-for-extendableevent①②"><c- n>ExtendableEvent</c-></a> {
+  <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="constructor" data-export data-lt="ExtendableMessageEvent(type, eventInitDict)|constructor(type, eventInitDict)|ExtendableMessageEvent(type)|constructor(type)" id="dom-extendablemessageevent-extendablemessageevent"><code><c- g>constructor</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent"></a></dfn>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①①"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent/ExtendableMessageEvent(type, eventInitDict), ExtendableMessageEvent/constructor(type, eventInitDict), ExtendableMessageEvent/ExtendableMessageEvent(type), ExtendableMessageEvent/constructor(type)" data-dfn-type="argument" data-export id="dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-type"><code><c- g>type</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-type"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-extendablemessageeventinit" id="ref-for-dictdef-extendablemessageeventinit"><c- n>ExtendableMessageEventInit</c-></a> <dfn class="idl-code" data-dfn-for="ExtendableMessageEvent/ExtendableMessageEvent(type, eventInitDict), ExtendableMessageEvent/constructor(type, eventInitDict), ExtendableMessageEvent/ExtendableMessageEvent(type), ExtendableMessageEvent/constructor(type)" data-dfn-type="argument" data-export id="dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-eventinitdict"><code><c- g>eventInitDict</c-></code><a class="self-link" href="#dom-extendablemessageevent-extendablemessageevent-type-eventinitdict-eventinitdict"></a></dfn> = {});
   <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑦"><c- b>any</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="any" href="#dom-extendablemessageevent-data" id="ref-for-dom-extendablemessageevent-data①"><c- g>data</c-></a>;
   <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-USVString" id="ref-for-idl-USVString⑨"><c- b>USVString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="USVString" href="#dom-extendablemessageevent-origin" id="ref-for-dom-extendablemessageevent-origin②"><c- g>origin</c-></a>;
-  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①①"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-extendablemessageevent-lasteventid" id="ref-for-dom-extendablemessageevent-lasteventid"><c- g>lastEventId</c-></a>;
+  <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①②"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-extendablemessageevent-lasteventid" id="ref-for-dom-extendablemessageevent-lasteventid"><c- g>lastEventId</c-></a>;
   [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SameObject" id="ref-for-SameObject⑧"><c- g>SameObject</c-></a>] <c- b>readonly</c-> <c- b>attribute</c-> (<a data-link-type="idl-name" href="#client" id="ref-for-client⑧"><c- n>Client</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="#serviceworker" id="ref-for-serviceworker②②"><c- n>ServiceWorker</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport②"><c- n>MessagePort</c-></a>)? <a class="idl-code" data-link-type="attribute" data-readonly data-type="(Client or ServiceWorker or MessagePort)?" href="#dom-extendablemessageevent-source" id="ref-for-dom-extendablemessageevent-source②"><c- g>source</c-></a>;
   <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-frozen-array" id="ref-for-idl-frozen-array③"><c- b>FrozenArray</c-></a>&lt;<a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport③"><c- n>MessagePort</c-></a>> <a class="idl-code" data-link-type="attribute" data-readonly data-type="FrozenArray<MessagePort>" href="#dom-extendablemessageevent-ports" id="ref-for-dom-extendablemessageevent-ports①"><c- g>ports</c-></a>;
 };
@@ -2906,36 +2987,36 @@ <h3 class="heading settled" data-level="4.6" id="extendablemessageevent-interfac
 <pre class="idl highlight def" id="extendablemessage-event-init-dictionary"><c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-extendablemessageeventinit"><code><c- g>ExtendableMessageEventInit</c-></code></dfn> : <a data-link-type="idl-name" href="#dictdef-extendableeventinit" id="ref-for-dictdef-extendableeventinit②"><c- n>ExtendableEventInit</c-></a> {
   <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-any" id="ref-for-idl-any⑧"><c- b>any</c-></a> <dfn class="idl-code" data-default="null" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="any " id="dom-extendablemessageeventinit-data"><code><c- g>data</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-data"></a></dfn> = <c- b>null</c->;
   <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-USVString" id="ref-for-idl-USVString①⓪"><c- b>USVString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="USVString " id="dom-extendablemessageeventinit-origin"><code><c- g>origin</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-origin"></a></dfn> = "";
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①②"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-extendablemessageeventinit-lasteventid"><code><c- g>lastEventId</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-lasteventid"></a></dfn> = "";
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①③"><c- b>DOMString</c-></a> <dfn class="idl-code" data-default="&quot;&quot;" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-extendablemessageeventinit-lasteventid"><code><c- g>lastEventId</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-lasteventid"></a></dfn> = "";
   (<a data-link-type="idl-name" href="#client" id="ref-for-client⑨"><c- n>Client</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="#serviceworker" id="ref-for-serviceworker②③"><c- n>ServiceWorker</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport④"><c- n>MessagePort</c-></a>)? <dfn class="idl-code" data-default="null" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="(Client or ServiceWorker or MessagePort)? " id="dom-extendablemessageeventinit-source"><code><c- g>source</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-source"></a></dfn> = <c- b>null</c->;
-  <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence②"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport⑤"><c- n>MessagePort</c-></a>> <dfn class="idl-code" data-default="[]" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="sequence<MessagePort> " id="dom-extendablemessageeventinit-ports"><code><c- g>ports</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-ports"></a></dfn> = [];
+  <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence④"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport⑤"><c- n>MessagePort</c-></a>> <dfn class="idl-code" data-default="[]" data-dfn-for="ExtendableMessageEventInit" data-dfn-type="dict-member" data-export data-type="sequence<MessagePort> " id="dom-extendablemessageeventinit-ports"><code><c- g>ports</c-></code><a class="self-link" href="#dom-extendablemessageeventinit-ports"></a></dfn> = [];
 };
 </pre>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦④">Service workers</a> define the <a class="idl-code" data-link-type="method" href="#dom-extendableevent-waituntil" id="ref-for-dom-extendableevent-waituntil⑤">extendable</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#eventdef-serviceworkerglobalscope-message" id="ref-for-eventdef-serviceworkerglobalscope-message③">message</a></code> event to allow extending the lifetime of the event. For the <code class="idl"><a class="idl-code" data-link-type="event" href="#eventdef-serviceworkerglobalscope-message" id="ref-for-eventdef-serviceworkerglobalscope-message④">message</a></code> event, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑤">service workers</a> use the <code class="idl"><a data-link-type="idl" href="#extendablemessageevent" id="ref-for-extendablemessageevent③">ExtendableMessageEvent</a></code> interface which extends the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①②">ExtendableEvent</a></code> interface.</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑤">Service workers</a> define the <a class="idl-code" data-link-type="method" href="#dom-extendableevent-waituntil" id="ref-for-dom-extendableevent-waituntil⑤">extendable</a> <code class="idl"><a class="idl-code" data-link-type="event" href="#eventdef-serviceworkerglobalscope-message" id="ref-for-eventdef-serviceworkerglobalscope-message③">message</a></code> event to allow extending the lifetime of the event. For the <code class="idl"><a class="idl-code" data-link-type="event" href="#eventdef-serviceworkerglobalscope-message" id="ref-for-eventdef-serviceworkerglobalscope-message④">message</a></code> event, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑥">service workers</a> use the <code class="idl"><a data-link-type="idl" href="#extendablemessageevent" id="ref-for-extendablemessageevent③">ExtendableMessageEvent</a></code> interface which extends the <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①③">ExtendableEvent</a></code> interface.</p>
      <section>
-      <h4 class="heading settled" data-level="4.6.1" id="extendablemessage-event-data"><span class="secno">4.6.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-data" id="ref-for-dom-extendablemessageevent-data②">event.data</a></code></span><a class="self-link" href="#extendablemessage-event-data"></a></h4>
+      <h4 class="heading settled" data-level="4.7.1" id="extendablemessage-event-data"><span class="secno">4.7.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-data" id="ref-for-dom-extendablemessageevent-data②">event.data</a></code></span><a class="self-link" href="#extendablemessage-event-data"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="attribute" data-export id="dom-extendablemessageevent-data"><code>data</code></dfn> attribute <em>must</em> return the value it was initialized to. When the object is created, this attribute <em>must</em> be initialized to null. It represents the message being sent.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.6.2" id="extendablemessage-event-origin"><span class="secno">4.6.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-origin" id="ref-for-dom-extendablemessageevent-origin③">event.origin</a></code></span><a class="self-link" href="#extendablemessage-event-origin"></a></h4>
+      <h4 class="heading settled" data-level="4.7.2" id="extendablemessage-event-origin"><span class="secno">4.7.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-origin" id="ref-for-dom-extendablemessageevent-origin③">event.origin</a></code></span><a class="self-link" href="#extendablemessage-event-origin"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="attribute" data-export id="dom-extendablemessageevent-origin"><code>origin</code></dfn> attribute <em>must</em> return the value it was initialized to. When the object is created, this attribute <em>must</em> be initialized to the empty string. It represents the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin⑥">origin</a> of the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③②">service worker client</a> that sent the message.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.6.3" id="extendablemessage-event-lasteventid"><span class="secno">4.6.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-lasteventid" id="ref-for-dom-extendablemessageevent-lasteventid①">event.lastEventId</a></code></span><a class="self-link" href="#extendablemessage-event-lasteventid"></a></h4>
+      <h4 class="heading settled" data-level="4.7.3" id="extendablemessage-event-lasteventid"><span class="secno">4.7.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-lasteventid" id="ref-for-dom-extendablemessageevent-lasteventid①">event.lastEventId</a></code></span><a class="self-link" href="#extendablemessage-event-lasteventid"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="attribute" data-export id="dom-extendablemessageevent-lasteventid"><code>lastEventId</code></dfn> attribute <em>must</em> return the value it was initialized to. When the object is created, this attribute <em>must</em> be initialized to the empty string.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.6.4" id="extendablemessage-event-source"><span class="secno">4.6.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-source" id="ref-for-dom-extendablemessageevent-source③">event.source</a></code></span><a class="self-link" href="#extendablemessage-event-source"></a></h4>
+      <h4 class="heading settled" data-level="4.7.4" id="extendablemessage-event-source"><span class="secno">4.7.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-source" id="ref-for-dom-extendablemessageevent-source③">event.source</a></code></span><a class="self-link" href="#extendablemessage-event-source"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="attribute" data-export id="dom-extendablemessageevent-source"><code>source</code></dfn> attribute <em>must</em> return the value it was initialized to. When the object is created, this attribute <em>must</em> be initialized to null. It represents the <code class="idl"><a data-link-type="idl" href="#client" id="ref-for-client①⓪">Client</a></code> object from which the message is sent.</p>
      </section>
      <section>
-      <h4 class="heading settled" data-level="4.6.5" id="extendablemessage-event-ports"><span class="secno">4.6.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-ports" id="ref-for-dom-extendablemessageevent-ports②">event.ports</a></code></span><a class="self-link" href="#extendablemessage-event-ports"></a></h4>
+      <h4 class="heading settled" data-level="4.7.5" id="extendablemessage-event-ports"><span class="secno">4.7.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-extendablemessageevent-ports" id="ref-for-dom-extendablemessageevent-ports②">event.ports</a></code></span><a class="self-link" href="#extendablemessage-event-ports"></a></h4>
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ExtendableMessageEvent" data-dfn-type="attribute" data-export id="dom-extendablemessageevent-ports"><code>ports</code></dfn> attribute <em>must</em> return the value it was initialized to. When the object is created, this attribute <em>must</em> be initialized to the empty array. It represents the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/web-messaging.html#messageport" id="ref-for-messageport⑥">MessagePort</a></code> array being sent.</p>
      </section>
     </section>
     <section>
-     <h3 class="heading settled" data-level="4.7" id="execution-context-events"><span class="secno">4.7. </span><span class="content">Events</span><a class="self-link" href="#execution-context-events"></a></h3>
-     <p>The following events, called <a data-link-type="dfn" href="#dfn-service-worker-events" id="ref-for-dfn-service-worker-events">service worker events</a>, are dispatched on <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①①">ServiceWorkerGlobalScope</a></code> object:</p>
+     <h3 class="heading settled" data-level="4.8" id="execution-context-events"><span class="secno">4.8. </span><span class="content">Events</span><a class="self-link" href="#execution-context-events"></a></h3>
+     <p>The following events, called <a data-link-type="dfn" href="#dfn-service-worker-events" id="ref-for-dfn-service-worker-events">service worker events</a>, are dispatched on <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①②">ServiceWorkerGlobalScope</a></code> object:</p>
      <table class="data">
       <thead>
        <tr>
@@ -2946,19 +3027,19 @@ <h3 class="heading settled" data-level="4.7" id="execution-context-events"><span
       <tbody>
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="event" data-export id="service-worker-global-scope-install-event"><code>install</code></dfn>
-        <td><code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①③">ExtendableEvent</a></code>
+        <td><code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①④">ExtendableEvent</a></code>
         <td><a data-link-type="dfn" href="#dfn-lifecycle-events" id="ref-for-dfn-lifecycle-events①">Lifecycle</a>
-        <td>The <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②⓪">service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①③">containing service worker registration</a>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker⑦">installing worker</a> changes. (See step 11.2 of the <a data-link-type="dfn" href="#install" id="ref-for-install①">Install</a> algorithm.)
+        <td>The <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②①">service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①③">containing service worker registration</a>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker⑦">installing worker</a> changes. (See step 11.2 of the <a data-link-type="dfn" href="#install" id="ref-for-install①">Install</a> algorithm.)
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="event" data-export id="service-worker-global-scope-activate-event"><code>activate</code></dfn>
-        <td><code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①④">ExtendableEvent</a></code>
+        <td><code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⑤">ExtendableEvent</a></code>
         <td><a data-link-type="dfn" href="#dfn-lifecycle-events" id="ref-for-dfn-lifecycle-events②">Lifecycle</a>
-        <td>The <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②①">service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①④">containing service worker registration</a>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑧">active worker</a> changes. (See step 12.2 of the <a data-link-type="dfn" href="#activate" id="ref-for-activate②">Activate</a> algorithm.)
+        <td>The <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②②">service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①④">containing service worker registration</a>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker①⑧">active worker</a> changes. (See step 12.2 of the <a data-link-type="dfn" href="#activate" id="ref-for-activate②">Activate</a> algorithm.)
        <tr>
         <td><dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="event" data-export id="service-worker-global-scope-fetch-event"><code>fetch</code></dfn>
         <td><code class="idl"><a data-link-type="idl" href="#fetchevent" id="ref-for-fetchevent③">FetchEvent</a></code>
         <td><a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events③">Functional</a>
-        <td>The <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-http-fetch" id="ref-for-concept-http-fetch②">http fetch</a> invokes <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch④">Handle Fetch</a> with <var>request</var>. As a result of performing <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑤">Handle Fetch</a>, the <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②②">service worker</a> returns a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response②">response</a> to the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-http-fetch" id="ref-for-concept-http-fetch③">http fetch</a>. The <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response③">response</a>, represented by a <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response④">Response</a></code> object, can be retrieved from a <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache">Cache</a></code> object or directly from network using <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#dom-global-fetch" id="ref-for-dom-global-fetch">self.fetch(input, init)</a></code> method. (A custom <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑤">Response</a></code> object can be another option.)
+        <td>The <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-http-fetch" id="ref-for-concept-http-fetch②">http fetch</a> invokes <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch④">Handle Fetch</a> with <var>request</var>. As a result of performing <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑤">Handle Fetch</a>, the <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②③">service worker</a> returns a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response③">response</a> to the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-http-fetch" id="ref-for-concept-http-fetch③">http fetch</a>. The <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response④">response</a>, represented by a <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response④">Response</a></code> object, can be retrieved from a <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache">Cache</a></code> object or directly from network using <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#dom-global-fetch" id="ref-for-dom-global-fetch">self.fetch(input, init)</a></code> method. (A custom <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑤">Response</a></code> object can be another option.)
        <tr>
         <td><a href="https://w3c.github.io/push-api/#dfn-push">push</a>
         <td><a href="https://w3c.github.io/push-api/#dom-pushevent"><code>PushEvent</code></a>
@@ -3007,15 +3088,15 @@ <h2 class="heading settled" data-level="5" id="cache-objects"><span class="secno
     <p>To allow authors to fully manage their content caches for offline use, the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/nav-history-apis.html#window" id="ref-for-window⑨">Window</a></code> and the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/workers.html#workerglobalscope" id="ref-for-workerglobalscope①">WorkerGlobalScope</a></code> provide the asynchronous caching methods that open and manipulate <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①">Cache</a></code> objects. An <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin⑦">origin</a> can have multiple, named <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache②">Cache</a></code> objects, whose contents are entirely under the control of scripts. Caches are not shared across <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#concept-origin" id="ref-for-concept-origin①⓪">origins</a>, and they are completely isolated from the browser’s HTTP cache.</p>
     <section>
      <h3 class="heading settled" data-level="5.1" id="cache-constructs"><span class="secno">5.1. </span><span class="content">Constructs</span><a class="self-link" href="#cache-constructs"></a></h3>
-     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-request-response-list">request response list</dfn> is a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑦">list</a> of <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#tuple" id="ref-for-tuple">tuples</a> consisting of a request (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request②">request</a>) and a response (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response④">response</a>).</p>
+     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-request-response-list">request response list</dfn> is a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑨">list</a> of <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#tuple" id="ref-for-tuple">tuples</a> consisting of a request (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request③">request</a>) and a response (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑤">response</a>).</p>
      <p>The <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-relevant-request-response-list">relevant request response list</dfn> is the instance that <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑤②">this</a> represents.</p>
-     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-name-to-cache-map">name to cache map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map③">ordered map</a> whose <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-entry" id="ref-for-map-entry">entry</a> consists of a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-key" id="ref-for-map-key">key</a> (a string that represents the name of a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list">request response list</a>) and a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-value" id="ref-for-map-value">value</a> (a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list①">request response list</a>).</p>
+     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-name-to-cache-map">name to cache map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map④">ordered map</a> whose <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-entry" id="ref-for-map-entry">entry</a> consists of a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-key" id="ref-for-map-key">key</a> (a string that represents the name of a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list">request response list</a>) and a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-value" id="ref-for-map-value">value</a> (a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list①">request response list</a>).</p>
      <p>Each <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key②">storage key</a> has an associated <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map">name to cache map</a>.</p>
      <p>The <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-relevant-name-to-cache-map">relevant name to cache map</dfn> is the <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map①">name to cache map</a> associated with the <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key③">storage key</a> <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#obtain-a-storage-key" id="ref-for-obtain-a-storage-key⑧">obtained</a> from <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑤③">this</a>'s associated <a data-link-type="dfn" href="#cachestorage-global-object" id="ref-for-cachestorage-global-object">global object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object①③">environment settings object</a>.</p>
     </section>
     <section>
      <h3 class="heading settled" data-level="5.2" id="cache-lifetimes"><span class="secno">5.2. </span><span class="content">Understanding Cache Lifetimes</span><a class="self-link" href="#cache-lifetimes"></a></h3>
-     <p>The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache③">Cache</a></code> instances are not part of the browser’s HTTP cache. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache④">Cache</a></code> objects are exactly what authors have to manage themselves. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑤">Cache</a></code> objects do not get updated unless authors explicitly request them to be. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑥">Cache</a></code> objects do not expire unless authors delete the entries. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑦">Cache</a></code> objects do not disappear just because the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑥">service worker</a> script is updated. That is, caches are not updated automatically. Updates must be manually managed. This implies that authors should version their caches by name and make sure to use the caches only from the version of the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑦">service worker</a> that can safely operate on.</p>
+     <p>The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache③">Cache</a></code> instances are not part of the browser’s HTTP cache. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache④">Cache</a></code> objects are exactly what authors have to manage themselves. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑤">Cache</a></code> objects do not get updated unless authors explicitly request them to be. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑥">Cache</a></code> objects do not expire unless authors delete the entries. The <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑦">Cache</a></code> objects do not disappear just because the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑦">service worker</a> script is updated. That is, caches are not updated automatically. Updates must be manually managed. This implies that authors should version their caches by name and make sure to use the caches only from the version of the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑧">service worker</a> that can safely operate on.</p>
     </section>
     <section>
      <h3 class="heading settled" data-level="5.3" id="self-caches"><span class="secno">5.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#global-caches-attribute" id="ref-for-global-caches-attribute">self.caches</a></code></span><a class="self-link" href="#self-caches"></a></h3>
@@ -3030,15 +3111,15 @@ <h4 class="heading settled" data-level="5.3.1" id="global-caches"><span class="s
     </section>
     <section>
      <h3 class="heading settled" data-level="5.4" id="cache-interface"><span class="secno">5.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑧">Cache</a></code></span><a class="self-link" href="#cache-interface"></a></h3>
-<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext⑧"><c- g>SecureContext</c-></a>, <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①①"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->)]
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext⑧"><c- g>SecureContext</c-></a>, <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①②"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->)]
 <c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="cache"><code><c- g>Cache</c-></code></dfn> {
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①②"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②③"><c- b>Promise</c-></a>&lt;(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑥"><c- n>Response</c-></a> <c- b>or</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑦"><c- b>undefined</c-></a>)> <a class="idl-code" data-link-type="method" href="#dom-cache-match" id="ref-for-dom-cache-match"><c- g>match</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/match(request, options), Cache/match(request)" data-dfn-type="argument" data-export id="dom-cache-match-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-match-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/match(request, options), Cache/match(request)" data-dfn-type="argument" data-export id="dom-cache-match-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-match-request-options-options"></a></dfn> = {});
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①③"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②④"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-frozen-array" id="ref-for-idl-frozen-array④"><c- b>FrozenArray</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑦"><c- n>Response</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cache-matchall" id="ref-for-dom-cache-matchall"><c- g>matchAll</c-></a>(<c- b>optional</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo①"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/matchAll(request, options), Cache/matchAll(request), Cache/matchAll()" data-dfn-type="argument" data-export id="dom-cache-matchall-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-matchall-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions①"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/matchAll(request, options), Cache/matchAll(request), Cache/matchAll()" data-dfn-type="argument" data-export id="dom-cache-matchall-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-matchall-request-options-options"></a></dfn> = {});
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①④"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑤"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑧"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-add" id="ref-for-dom-cache-add"><c- g>add</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo②"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/add(request)" data-dfn-type="argument" data-export id="dom-cache-add-request-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-add-request-request"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑤"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑥"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑨"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-addall" id="ref-for-dom-cache-addall"><c- g>addAll</c-></a>(<a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence③"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo③"><c- n>RequestInfo</c-></a>> <dfn class="idl-code" data-dfn-for="Cache/addAll(requests)" data-dfn-type="argument" data-export id="dom-cache-addall-requests-requests"><code><c- g>requests</c-></code><a class="self-link" href="#dom-cache-addall-requests-requests"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑥"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑦"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined②⓪"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-put" id="ref-for-dom-cache-put"><c- g>put</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo④"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/put(request, response)" data-dfn-type="argument" data-export id="dom-cache-put-request-response-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-put-request-response-request"></a></dfn>, <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑧"><c- n>Response</c-></a> <dfn class="idl-code" data-dfn-for="Cache/put(request, response)" data-dfn-type="argument" data-export id="dom-cache-put-request-response-response"><code><c- g>response</c-></code><a class="self-link" href="#dom-cache-put-request-response-response"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑦"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑧"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean④"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-delete" id="ref-for-dom-cache-delete"><c- g>delete</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑤"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/delete(request, options), Cache/delete(request)" data-dfn-type="argument" data-export id="dom-cache-delete-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-delete-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions②"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/delete(request, options), Cache/delete(request)" data-dfn-type="argument" data-export id="dom-cache-delete-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-delete-request-options-options"></a></dfn> = {});
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑧"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑨"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-frozen-array" id="ref-for-idl-frozen-array⑤"><c- b>FrozenArray</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request②"><c- n>Request</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cache-keys" id="ref-for-dom-cache-keys"><c- g>keys</c-></a>(<c- b>optional</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑥"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/keys(request, options), Cache/keys(request), Cache/keys()" data-dfn-type="argument" data-export id="dom-cache-keys-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-keys-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions③"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/keys(request, options), Cache/keys(request), Cache/keys()" data-dfn-type="argument" data-export id="dom-cache-keys-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-keys-request-options-options"></a></dfn> = {});
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①②"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②④"><c- b>Promise</c-></a>&lt;(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑥"><c- n>Response</c-></a> <c- b>or</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑧"><c- b>undefined</c-></a>)> <a class="idl-code" data-link-type="method" href="#dom-cache-match" id="ref-for-dom-cache-match"><c- g>match</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/match(request, options), Cache/match(request)" data-dfn-type="argument" data-export id="dom-cache-match-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-match-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/match(request, options), Cache/match(request)" data-dfn-type="argument" data-export id="dom-cache-match-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-match-request-options-options"></a></dfn> = {});
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①③"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑤"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-frozen-array" id="ref-for-idl-frozen-array④"><c- b>FrozenArray</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑦"><c- n>Response</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cache-matchall" id="ref-for-dom-cache-matchall"><c- g>matchAll</c-></a>(<c- b>optional</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo①"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/matchAll(request, options), Cache/matchAll(request), Cache/matchAll()" data-dfn-type="argument" data-export id="dom-cache-matchall-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-matchall-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions①"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/matchAll(request, options), Cache/matchAll(request), Cache/matchAll()" data-dfn-type="argument" data-export id="dom-cache-matchall-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-matchall-request-options-options"></a></dfn> = {});
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①④"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑥"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined①⑨"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-add" id="ref-for-dom-cache-add"><c- g>add</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo②"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/add(request)" data-dfn-type="argument" data-export id="dom-cache-add-request-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-add-request-request"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑤"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑦"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined②⓪"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-addall" id="ref-for-dom-cache-addall"><c- g>addAll</c-></a>(<a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence⑤"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo③"><c- n>RequestInfo</c-></a>> <dfn class="idl-code" data-dfn-for="Cache/addAll(requests)" data-dfn-type="argument" data-export id="dom-cache-addall-requests-requests"><code><c- g>requests</c-></code><a class="self-link" href="#dom-cache-addall-requests-requests"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑥"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑧"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined②①"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-put" id="ref-for-dom-cache-put"><c- g>put</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo④"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/put(request, response)" data-dfn-type="argument" data-export id="dom-cache-put-request-response-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-put-request-response-request"></a></dfn>, <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response⑧"><c- n>Response</c-></a> <dfn class="idl-code" data-dfn-for="Cache/put(request, response)" data-dfn-type="argument" data-export id="dom-cache-put-request-response-response"><code><c- g>response</c-></code><a class="self-link" href="#dom-cache-put-request-response-response"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑦"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise②⑨"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean④"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cache-delete" id="ref-for-dom-cache-delete"><c- g>delete</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑤"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/delete(request, options), Cache/delete(request)" data-dfn-type="argument" data-export id="dom-cache-delete-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-delete-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions②"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/delete(request, options), Cache/delete(request)" data-dfn-type="argument" data-export id="dom-cache-delete-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-delete-request-options-options"></a></dfn> = {});
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑧"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③⓪"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-frozen-array" id="ref-for-idl-frozen-array⑤"><c- b>FrozenArray</c-></a>&lt;<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request②"><c- n>Request</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cache-keys" id="ref-for-dom-cache-keys"><c- g>keys</c-></a>(<c- b>optional</c-> <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑥"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="Cache/keys(request, options), Cache/keys(request), Cache/keys()" data-dfn-type="argument" data-export id="dom-cache-keys-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cache-keys-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions③"><c- n>CacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="Cache/keys(request, options), Cache/keys(request), Cache/keys()" data-dfn-type="argument" data-export id="dom-cache-keys-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cache-keys-request-options-options"></a></dfn> = {});
 };
 </pre>
 <pre class="idl highlight def" id="cache-query-options-dictionary"><c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-cachequeryoptions"><code><c- g>CacheQueryOptions</c-></code></dfn> {
@@ -3048,14 +3129,14 @@ <h3 class="heading settled" data-level="5.4" id="cache-interface"><span class="s
 };
 </pre>
      <p>A <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache⑨">Cache</a></code> object represents a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list②">request response list</a>. Multiple separate objects implementing the <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⓪">Cache</a></code> interface across documents and workers can all be associated with the same <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list③">request response list</a> simultaneously.</p>
-     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation">cache batch operation</dfn> is a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#struct" id="ref-for-struct①">struct</a> that consists of:</p>
+     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation">cache batch operation</dfn> is a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#struct" id="ref-for-struct②">struct</a> that consists of:</p>
      <ul>
       <li data-md>
        <p>A <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-type">type</dfn> ("<code>delete</code>" or "<code>put</code>").</p>
       <li data-md>
-       <p>A <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-request">request</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request③">request</a>).</p>
+       <p>A <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-request">request</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request④">request</a>).</p>
       <li data-md>
-       <p>A <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-response">response</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑤">response</a>).</p>
+       <p>A <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-response">response</dfn> (a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑥">response</a>).</p>
       <li data-md>
        <p>An <dfn class="dfn-paneled" data-dfn-for="cache batch operation" data-dfn-type="dfn" data-export id="dfn-cache-batch-operation-options">options</dfn> (a <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions④">CacheQueryOptions</a></code>).</p>
      </ul>
@@ -3114,13 +3195,13 @@ <h4 class="heading settled" data-level="5.4.2" id="cache-matchall"><span class="
            <li data-md>
             <p>Set <var>r</var> to <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request">request</a>.</p>
            <li data-md>
-            <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with①">a promise resolved with</a> an empty array.</p>
+            <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with②">a promise resolved with</a> an empty array.</p>
           </ol>
          <li data-md>
           <p>Else if <var>request</var> is a string, then:</p>
           <ol>
            <li data-md>
-            <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request①">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request④">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑥">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with②">a promise rejected with</a> that exception.</p>
+            <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request①">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request④">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑥">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with④">a promise rejected with</a> that exception.</p>
           </ol>
         </ol>
        <li data-md>
@@ -3131,7 +3212,7 @@ <h4 class="heading settled" data-level="5.4.2" id="cache-matchall"><span class="
         <p>Run these substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel①⑥">in parallel</a>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>responses</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑧">list</a>.</p>
+          <p>Let <var>responses</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⓪">list</a>.</p>
          <li data-md>
           <p>If the optional argument <var>request</var> is omitted, then:</p>
           <ol>
@@ -3164,7 +3245,7 @@ <h4 class="heading settled" data-level="5.4.2" id="cache-matchall"><span class="
           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task①⑥">Queue a task</a>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②②">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop⑥">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source①⓪">DOM manipulation task source</a>, to perform the following steps:</p>
           <ol>
            <li data-md>
-            <p>Let <var>responseList</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list⑨">list</a>.</p>
+            <p>Let <var>responseList</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①①">list</a>.</p>
            <li data-md>
             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate⑦">For each</a> <var>response</var> of <var>responses</var>:</p>
             <ol>
@@ -3196,34 +3277,34 @@ <h4 class="heading settled" data-level="5.4.4" id="cache-addAll"><span class="se
       <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="Cache" data-dfn-type="method" data-export id="dom-cache-addall"><code>addAll(<var>requests</var>)</code></dfn> method steps are:</p>
       <ol>
        <li data-md>
-        <p>Let <var>responsePromises</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⓪">list</a>.</p>
+        <p>Let <var>responsePromises</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①②">list</a>.</p>
        <li data-md>
-        <p>Let <var>requestList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①①">list</a>.</p>
+        <p>Let <var>requestList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①③">list</a>.</p>
        <li data-md>
         <p>For each <var>request</var> whose type is <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request⑤">Request</a></code> in <var>requests</var>:</p>
         <ol>
          <li data-md>
           <p>Let <var>r</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request②">request</a>.</p>
          <li data-md>
-          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", or <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method①">method</a> is not `<code>GET</code>`, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with③">a promise rejected with</a> a <code>TypeError</code>.</p>
+          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", or <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method①">method</a> is not `<code>GET</code>`, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑤">a promise rejected with</a> a <code>TypeError</code>.</p>
         </ol>
        <li data-md>
-        <p>Let <var>fetchControllers</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①②">list</a> of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller" id="ref-for-fetch-controller">fetch controllers</a>.</p>
+        <p>Let <var>fetchControllers</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①④">list</a> of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller" id="ref-for-fetch-controller">fetch controllers</a>.</p>
        <li data-md>
         <p>For each <var>request</var> in <var>requests</var>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>r</var> be the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request③">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request⑥">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑦">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with④">a promise rejected with</a> that exception.</p>
+          <p>Let <var>r</var> be the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request③">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request⑥">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑦">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑥">a promise rejected with</a> that exception.</p>
          <li data-md>
           <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url②">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme①">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", then:</p>
           <ol>
            <li data-md>
             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate⑧">For each</a> <var>fetchController</var> of <var>fetchControllers</var>, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-abort" id="ref-for-fetch-controller-abort">abort</a> <var>fetchController</var>.</p>
            <li data-md>
-            <p>Return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑤">a promise rejected with</a> a <code>TypeError</code>.</p>
+            <p>Return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑦">a promise rejected with</a> a <code>TypeError</code>.</p>
           </ol>
          <li data-md>
-          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global⑦">global object</a> is a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①②">ServiceWorkerGlobalScope</a></code> object, set <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#request-service-workers-mode" id="ref-for-request-service-workers-mode">service-workers mode</a> to "<code>none</code>".</p>
+          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global⑦">global object</a> is a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①③">ServiceWorkerGlobalScope</a></code> object, set <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#request-service-workers-mode" id="ref-for-request-service-workers-mode">service-workers mode</a> to "<code>none</code>".</p>
          <li data-md>
           <p>Set <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-initiator" id="ref-for-concept-request-initiator">initiator</a> to "<code>fetch</code>" and <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination">destination</a> to "<code>subresource</code>".</p>
          <li data-md>
@@ -3244,7 +3325,7 @@ <h4 class="heading settled" data-level="5.4.4" id="cache-addAll"><span class="se
               <p>Else if <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-header-list" id="ref-for-concept-response-header-list">header list</a> contains a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header">header</a> <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name">named</a> `<code>Vary</code>`, then:</p>
               <ol>
                <li data-md>
-                <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①③">list</a> containing the elements corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2">field-values</a> of the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4">Vary</a> header.</p>
+                <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑤">list</a> containing the elements corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2">field-values</a> of the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4">Vary</a> header.</p>
                <li data-md>
                 <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate⑨">For each</a> <var>fieldValue</var> of <var>fieldValues</var>:</p>
                 <ol>
@@ -3280,7 +3361,7 @@ <h4 class="heading settled" data-level="5.4.4" id="cache-addAll"><span class="se
         <p>Return the result of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-perform-steps-once-promise-is-settled" id="ref-for-dfn-perform-steps-once-promise-is-settled①">reacting</a> to <var>p</var> with a fulfillment handler that, when called with argument <var>responses</var>, performs the following substeps:</p>
         <ol>
          <li data-md>
-          <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①④">list</a>.</p>
+          <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑥">list</a>.</p>
          <li data-md>
           <p>Let <var>index</var> be zero.</p>
          <li data-md>
@@ -3336,34 +3417,34 @@ <h4 class="heading settled" data-level="5.4.5" id="cache-put"><span class="secno
         <p>Else:</p>
         <ol>
          <li data-md>
-          <p>Let <var>requestObj</var> be the result of invoking <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request⑧">Request</a></code>'s constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑨">throws</a> an <var>exception</var>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑥">a promise rejected with</a> <var>exception</var>.</p>
+          <p>Let <var>requestObj</var> be the result of invoking <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request⑧">Request</a></code>'s constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw⑨">throws</a> an <var>exception</var>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑧">a promise rejected with</a> <var>exception</var>.</p>
          <li data-md>
           <p>Set <var>innerRequest</var> to <var>requestObj</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑤">request</a>.</p>
         </ol>
        <li data-md>
-        <p>If <var>innerRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url③">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme②">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", or <var>innerRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method②">method</a> is not `<code>GET</code>`, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑦">a promise rejected with</a> a <code>TypeError</code>.</p>
+        <p>If <var>innerRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url③">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme②">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", or <var>innerRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method②">method</a> is not `<code>GET</code>`, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑨">a promise rejected with</a> a <code>TypeError</code>.</p>
        <li data-md>
         <p>Let <var>innerResponse</var> be <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response①">response</a>.</p>
        <li data-md>
-        <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-status" id="ref-for-concept-response-status①">status</a> is <code>206</code>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑧">a promise rejected with</a> a <code>TypeError</code>.</p>
+        <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-status" id="ref-for-concept-response-status①">status</a> is <code>206</code>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①⓪">a promise rejected with</a> a <code>TypeError</code>.</p>
        <li data-md>
         <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-header-list" id="ref-for-concept-response-header-list①">header list</a> contains a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header①">header</a> <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name①">named</a> `<code>Vary</code>`, then:</p>
         <ol>
          <li data-md>
-          <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑤">list</a> containing the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item⑤">items</a> corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4①">Vary</a> header’s <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2①">field-values</a>.</p>
+          <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑦">list</a> containing the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item⑤">items</a> corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4①">Vary</a> header’s <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2①">field-values</a>.</p>
          <li data-md>
           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①①">For each</a> <var>fieldValue</var> in <var>fieldValues</var>:</p>
           <ol>
            <li data-md>
-            <p>If <var>fieldValue</var> matches "<code>*</code>", return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with⑨">a promise rejected with</a> a <code>TypeError</code>.</p>
+            <p>If <var>fieldValue</var> matches "<code>*</code>", return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①①">a promise rejected with</a> a <code>TypeError</code>.</p>
           </ol>
         </ol>
        <li data-md>
-        <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-body" id="ref-for-concept-response-body⑤">body</a> is <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#is-readable-stream-disturbed" id="ref-for-is-readable-stream-disturbed">disturbed</a> or <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-locked" id="ref-for-readablestream-locked">locked</a>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①⓪">a promise rejected with</a> a <code>TypeError</code>.</p>
+        <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-body" id="ref-for-concept-response-body⑤">body</a> is <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#is-readable-stream-disturbed" id="ref-for-is-readable-stream-disturbed">disturbed</a> or <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-locked" id="ref-for-readablestream-locked">locked</a>, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①②">a promise rejected with</a> a <code>TypeError</code>.</p>
        <li data-md>
         <p>Let <var>clonedResponse</var> be a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-clone" id="ref-for-concept-response-clone">clone</a> of <var>innerResponse</var>.</p>
        <li data-md>
-        <p>Let <var>bodyReadPromise</var> be <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with②">a promise resolved with</a> undefined.</p>
+        <p>Let <var>bodyReadPromise</var> be <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with③">a promise resolved with</a> undefined.</p>
        <li data-md>
         <p>If <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-body" id="ref-for-concept-response-body⑥">body</a> is non-null, run these substeps:</p>
         <ol>
@@ -3376,7 +3457,7 @@ <h4 class="heading settled" data-level="5.4.5" id="cache-put"><span class="secno
         </ol>
         <p class="note" role="note"><span class="marker">Note:</span> This ensures that <var>innerResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-body" id="ref-for-concept-response-body⑧">body</a> is <a data-link-type="dfn" href="https://streams.spec.whatwg.org/#readablestream-locked" id="ref-for-readablestream-locked①">locked</a>, and we have a full buffered copy of the body in <var>clonedResponse</var>. An implementation could optimize by streaming directly to disk rather than memory.</p>
        <li data-md>
-        <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑥">list</a>.</p>
+        <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑧">list</a>.</p>
        <li data-md>
         <p>Let <var>operation</var> be a <a data-link-type="dfn" href="#dfn-cache-batch-operation" id="ref-for-dfn-cache-batch-operation①">cache batch operation</a>.</p>
        <li data-md>
@@ -3425,16 +3506,16 @@ <h4 class="heading settled" data-level="5.4.6" id="cache-delete"><span class="se
          <li data-md>
           <p>Set <var>r</var> to <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑥">request</a>.</p>
          <li data-md>
-          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method③">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with③">a promise resolved with</a> false.</p>
+          <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method③">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with④">a promise resolved with</a> false.</p>
         </ol>
        <li data-md>
         <p>Else if <var>request</var> is a string, then:</p>
         <ol>
          <li data-md>
-          <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑦">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①⓪">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①①">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①①">a promise rejected with</a> that exception.</p>
+          <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑦">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①⓪">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①①">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①③">a promise rejected with</a> that exception.</p>
         </ol>
        <li data-md>
-        <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑦">list</a>.</p>
+        <p>Let <var>operations</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑨">list</a>.</p>
        <li data-md>
         <p>Let <var>operation</var> be a <a data-link-type="dfn" href="#dfn-cache-batch-operation" id="ref-for-dfn-cache-batch-operation②">cache batch operation</a>.</p>
        <li data-md>
@@ -3490,13 +3571,13 @@ <h4 class="heading settled" data-level="5.4.7" id="cache-keys"><span class="secn
            <li data-md>
             <p>Set <var>r</var> to <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑧">request</a>.</p>
            <li data-md>
-            <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method④">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with④">a promise resolved with</a> an empty array.</p>
+            <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method④">method</a> is not `<code>GET</code>` and <var>options</var>.ignoreMethod is false, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with⑤">a promise resolved with</a> an empty array.</p>
           </ol>
          <li data-md>
           <p>Else if <var>request</var> is a string, then:</p>
           <ol>
            <li data-md>
-            <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑨">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①②">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①③">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①②">a promise rejected with</a> that exception.</p>
+            <p>Set <var>r</var> to the associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request⑨">request</a> of the result of invoking the initial value of <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①②">Request</a></code> as constructor with <var>request</var> as its argument. If this <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①③">throws</a> an exception, return <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-rejected-with" id="ref-for-a-promise-rejected-with①④">a promise rejected with</a> that exception.</p>
           </ol>
         </ol>
        <li data-md>
@@ -3507,7 +3588,7 @@ <h4 class="heading settled" data-level="5.4.7" id="cache-keys"><span class="secn
         <p>Run these substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel②①">in parallel</a>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>requests</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑧">list</a>.</p>
+          <p>Let <var>requests</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⓪">list</a>.</p>
          <li data-md>
           <p>If the optional argument <var>request</var> is omitted, then:</p>
           <ol>
@@ -3534,7 +3615,7 @@ <h4 class="heading settled" data-level="5.4.7" id="cache-keys"><span class="secn
           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task②⓪">Queue a task</a>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②⑥">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①⓪">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source①④">DOM manipulation task source</a>, to perform the following steps:</p>
           <ol>
            <li data-md>
-            <p>Let <var>requestList</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list①⑨">list</a>.</p>
+            <p>Let <var>requestList</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②①">list</a>.</p>
            <li data-md>
             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①④">For each</a> <var>request</var> of <var>requests</var>:</p>
             <ol>
@@ -3552,17 +3633,17 @@ <h4 class="heading settled" data-level="5.4.7" id="cache-keys"><span class="secn
     </section>
     <section>
      <h3 class="heading settled" data-level="5.5" id="cachestorage-interface"><span class="secno">5.5. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#cachestorage" id="ref-for-cachestorage②">CacheStorage</a></code></span><a class="self-link" href="#cachestorage-interface"></a></h3>
-<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext⑨"><c- g>SecureContext</c-></a>, <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①②"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->)]
+<pre class="idl highlight def">[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#SecureContext" id="ref-for-SecureContext⑨"><c- g>SecureContext</c-></a>, <a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed" id="ref-for-Exposed①③"><c- g>Exposed</c-></a>=(<c- n>Window</c->,<c- n>Worker</c->)]
 <c- b>interface</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="interface" data-export id="cachestorage"><code><c- g>CacheStorage</c-></code></dfn> {
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑨"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③⓪"><c- b>Promise</c-></a>&lt;(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①⓪"><c- n>Response</c-></a> <c- b>or</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined②①"><c- b>undefined</c-></a>)> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-match" id="ref-for-dom-cachestorage-match"><c- g>match</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑦"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/match(request, options), CacheStorage/match(request)" data-dfn-type="argument" data-export id="dom-cachestorage-match-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cachestorage-match-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-multicachequeryoptions" id="ref-for-dictdef-multicachequeryoptions"><c- n>MultiCacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/match(request, options), CacheStorage/match(request)" data-dfn-type="argument" data-export id="dom-cachestorage-match-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cachestorage-match-request-options-options"></a></dfn> = {});
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②⓪"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③①"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean⑧"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-has" id="ref-for-dom-cachestorage-has"><c- g>has</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①③"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/has(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-has-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-has-cachename-cachename"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②①"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③②"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#cache" id="ref-for-cache①①"><c- n>Cache</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-open" id="ref-for-dom-cachestorage-open"><c- g>open</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①④"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/open(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-open-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-open-cachename-cachename"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②②"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③③"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean⑨"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-delete" id="ref-for-dom-cachestorage-delete"><c- g>delete</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑤"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/delete(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-delete-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-delete-cachename-cachename"></a></dfn>);
-  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②③"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③④"><c- b>Promise</c-></a>&lt;<a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence④"><c- b>sequence</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑥"><c- b>DOMString</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-keys" id="ref-for-dom-cachestorage-keys"><c- g>keys</c-></a>();
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject①⑨"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③①"><c- b>Promise</c-></a>&lt;(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①⓪"><c- n>Response</c-></a> <c- b>or</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined" id="ref-for-idl-undefined②②"><c- b>undefined</c-></a>)> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-match" id="ref-for-dom-cachestorage-match"><c- g>match</c-></a>(<a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestinfo" id="ref-for-requestinfo⑦"><c- n>RequestInfo</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/match(request, options), CacheStorage/match(request)" data-dfn-type="argument" data-export id="dom-cachestorage-match-request-options-request"><code><c- g>request</c-></code><a class="self-link" href="#dom-cachestorage-match-request-options-request"></a></dfn>, <c- b>optional</c-> <a data-link-type="idl-name" href="#dictdef-multicachequeryoptions" id="ref-for-dictdef-multicachequeryoptions"><c- n>MultiCacheQueryOptions</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/match(request, options), CacheStorage/match(request)" data-dfn-type="argument" data-export id="dom-cachestorage-match-request-options-options"><code><c- g>options</c-></code><a class="self-link" href="#dom-cachestorage-match-request-options-options"></a></dfn> = {});
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②⓪"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③②"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean⑧"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-has" id="ref-for-dom-cachestorage-has"><c- g>has</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①④"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/has(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-has-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-has-cachename-cachename"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②①"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③③"><c- b>Promise</c-></a>&lt;<a data-link-type="idl-name" href="#cache" id="ref-for-cache①①"><c- n>Cache</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-open" id="ref-for-dom-cachestorage-open"><c- g>open</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑤"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/open(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-open-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-open-cachename-cachename"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②②"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③④"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-boolean" id="ref-for-idl-boolean⑨"><c- b>boolean</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-delete" id="ref-for-dom-cachestorage-delete"><c- g>delete</c-></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑥"><c- b>DOMString</c-></a> <dfn class="idl-code" data-dfn-for="CacheStorage/delete(cacheName)" data-dfn-type="argument" data-export id="dom-cachestorage-delete-cachename-cachename"><code><c- g>cacheName</c-></code><a class="self-link" href="#dom-cachestorage-delete-cachename-cachename"></a></dfn>);
+  [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#NewObject" id="ref-for-NewObject②③"><c- g>NewObject</c-></a>] <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise" id="ref-for-idl-promise③⑤"><c- b>Promise</c-></a>&lt;<a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence" id="ref-for-idl-sequence⑥"><c- b>sequence</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑦"><c- b>DOMString</c-></a>>> <a class="idl-code" data-link-type="method" href="#dom-cachestorage-keys" id="ref-for-dom-cachestorage-keys"><c- g>keys</c-></a>();
 };
 
 <c- b>dictionary</c-> <dfn class="dfn-paneled idl-code" data-dfn-type="dictionary" data-export id="dictdef-multicachequeryoptions"><code><c- g>MultiCacheQueryOptions</c-></code></dfn> : <a data-link-type="idl-name" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑤"><c- n>CacheQueryOptions</c-></a> {
-  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑦"><c- b>DOMString</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="MultiCacheQueryOptions" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-multicachequeryoptions-cachename"><code><c- g>cacheName</c-></code></dfn>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString①⑧"><c- b>DOMString</c-></a> <dfn class="dfn-paneled idl-code" data-dfn-for="MultiCacheQueryOptions" data-dfn-type="dict-member" data-export data-type="DOMString " id="dom-multicachequeryoptions-cachename"><code><c- g>cacheName</c-></code></dfn>;
 };
 </pre>
      <p class="note" role="note"><span class="marker">Note:</span> <code class="idl"><a data-link-type="idl" href="#cachestorage" id="ref-for-cachestorage③">CacheStorage</a></code> interface is designed to largely conform to <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-map-objects" id="ref-for-sec-map-objects">ECMAScript 6 Map objects</a> but entirely async, and with additional convenience methods. The methods, <code>clear</code>, <code>forEach</code>, <code>entries</code> and <code>values</code>, are intentionally excluded from the scope of the first version resorting to the ongoing discussion about the async iteration by TC39.</p>
@@ -3598,7 +3679,7 @@ <h4 class="heading settled" data-level="5.5.1" id="cache-storage-match"><span cl
         <p>Else:</p>
         <ol>
          <li data-md>
-          <p>Let <var>promise</var> be <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with⑤">a promise resolved with</a> undefined.</p>
+          <p>Let <var>promise</var> be <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-promise-resolved-with" id="ref-for-a-promise-resolved-with⑥">a promise resolved with</a> undefined.</p>
          <li data-md>
           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-iterate" id="ref-for-map-iterate①">For each</a> <var>cacheName</var> → <var>cache</var> of the <a data-link-type="dfn" href="#dfn-relevant-name-to-cache-map" id="ref-for-dfn-relevant-name-to-cache-map①">relevant name to cache map</a>:</p>
           <ol>
@@ -3711,7 +3792,7 @@ <h4 class="heading settled" data-level="5.5.5" id="cache-storage-keys"><span cla
         <p>Run the following substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel②⑥">in parallel</a>:</p>
         <ol>
          <li data-md>
-          <p>Let <var>cacheKeys</var> be the result of <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys②">getting the keys</a> of the <a data-link-type="dfn" href="#dfn-relevant-name-to-cache-map" id="ref-for-dfn-relevant-name-to-cache-map⑥">relevant name to cache map</a>.</p>
+          <p>Let <var>cacheKeys</var> be the result of <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys③">getting the keys</a> of the <a data-link-type="dfn" href="#dfn-relevant-name-to-cache-map" id="ref-for-dfn-relevant-name-to-cache-map⑥">relevant name to cache map</a>.</p>
           <p class="note" role="note"><span class="marker">Note:</span> The <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item⑥">items</a> in the result <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-set" id="ref-for-ordered-set⑥">ordered set</a> are in the order that their corresponding entry was added to the <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map④">name to cache map</a>.</p>
          <li data-md>
           <p>Resolve <var>promise</var> with <var>cacheKeys</var>.</p>
@@ -3726,12 +3807,12 @@ <h4 class="heading settled" data-level="5.5.5" id="cache-storage-keys"><span cla
     <h2 class="heading settled" data-level="6" id="security-considerations"><span class="secno">6. </span><span class="content">Security Considerations</span><a class="self-link" href="#security-considerations"></a></h2>
     <section>
      <h3 class="heading settled" data-level="6.1" id="secure-context"><span class="secno">6.1. </span><span class="content">Secure Context</span><a class="self-link" href="#secure-context"></a></h3>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑧">Service workers</a> <em>must</em> execute in <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context②">secure contexts</a>. <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③③">Service worker clients</a> <em>must</em> also be <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context③">secure contexts</a> to register a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑤">service worker registration</a>, to get access to the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑥">service worker registrations</a> and the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑨">service workers</a>, to do messaging with the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⓪">service workers</a>, and to be manipulated by the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧①">service workers</a>.</p>
-     <p class="note" role="note"><span class="marker">Note:</span> This effectively means that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧②">service workers</a> and their <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③④">service worker clients</a> need to be hosted over HTTPS. A user agent can allow <code>localhost</code> (see <a href="https://w3c.github.io/webappsec-secure-contexts/#localhost">the requirements</a>), <code>127.0.0.0/8</code>, and <code>::1/128</code> for development purposes. The primary reason for this restriction is to protect users from the <a href="https://w3c.github.io/webappsec-secure-contexts/#threat-risks">risks associated with insecure contexts</a>.</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑦⑨">Service workers</a> <em>must</em> execute in <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context②">secure contexts</a>. <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③③">Service worker clients</a> <em>must</em> also be <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context③">secure contexts</a> to register a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑤">service worker registration</a>, to get access to the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑥">service worker registrations</a> and the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⓪">service workers</a>, to do messaging with the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧①">service workers</a>, and to be manipulated by the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧②">service workers</a>.</p>
+     <p class="note" role="note"><span class="marker">Note:</span> This effectively means that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧③">service workers</a> and their <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③④">service worker clients</a> need to be hosted over HTTPS. A user agent can allow <code>localhost</code> (see <a href="https://w3c.github.io/webappsec-secure-contexts/#localhost">the requirements</a>), <code>127.0.0.0/8</code>, and <code>::1/128</code> for development purposes. The primary reason for this restriction is to protect users from the <a href="https://w3c.github.io/webappsec-secure-contexts/#threat-risks">risks associated with insecure contexts</a>.</p>
     </section>
     <section>
      <h3 class="heading settled" data-level="6.2" id="content-security-policy"><span class="secno">6.2. </span><span class="content">Content Security Policy</span><a class="self-link" href="#content-security-policy"></a></h3>
-     <p>Whenever a user agent invokes the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker①">Run Service Worker</a> algorithm with a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧③">service worker</a> <var>serviceWorker</var>:</p>
+     <p>Whenever a user agent invokes the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker①">Run Service Worker</a> algorithm with a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧④">service worker</a> <var>serviceWorker</var>:</p>
      <ul>
       <li data-md>
        <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource②">script resource</a> was delivered with a <code>Content-Security-Policy</code> HTTP header containing the value <var>policy</var>, the user agent <em>must</em> <a data-link-type="dfn" href="https://wicg.github.io/csp-next/scripting-policy.html#scripting-policy-pair-enforced" id="ref-for-scripting-policy-pair-enforced">enforce</a> <var>policy</var> for <var>serviceWorker</var>.</p>
@@ -3745,14 +3826,14 @@ <h3 class="heading settled" data-level="6.3" id="origin-relativity"><span class=
      <section>
       <h4 class="heading settled" data-level="6.3.1" id="origin-restriction"><span class="secno">6.3.1. </span><span class="content">Origin restriction</span><a class="self-link" href="#origin-restriction"></a></h4>
       <p><em>This section is non-normative.</em></p>
-      <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧④">service worker</a> executes in the registering <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③⑤">service worker client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⓪">origin</a>. One of the advanced concerns that major applications would encounter is whether they can be hosted from a CDN. By definition, these are servers in other places, often on other <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#concept-origin" id="ref-for-concept-origin①①">origins</a>. Therefore, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑤">service workers</a> cannot be hosted on CDNs. But they can include resources via <a data-link-type="functionish" href="#importscripts-method" id="ref-for-importscripts-method">importScripts()</a>. The reason for this restriction is that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑥">service workers</a> create the opportunity for a bad actor to turn a bad day into a bad eternity.</p>
+      <p>A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑤">service worker</a> executes in the registering <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③⑤">service worker client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⓪">origin</a>. One of the advanced concerns that major applications would encounter is whether they can be hosted from a CDN. By definition, these are servers in other places, often on other <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#concept-origin" id="ref-for-concept-origin①①">origins</a>. Therefore, <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑥">service workers</a> cannot be hosted on CDNs. But they can include resources via <a data-link-type="functionish" href="#importscripts-method" id="ref-for-importscripts-method">importScripts()</a>. The reason for this restriction is that <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑦">service workers</a> create the opportunity for a bad actor to turn a bad day into a bad eternity.</p>
      </section>
      <section>
       <h4 class="heading settled" data-level="6.3.2" id="importscripts"><span class="secno">6.3.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#importscripts-method" id="ref-for-importscripts-method①">importScripts(urls)</a></code></span><a class="self-link" href="#importscripts"></a></h4>
-      <p>When the <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="method" data-export id="importscripts-method"><code>importScripts(<var>urls</var>)</code></dfn> method is called on a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①③">ServiceWorkerGlobalScope</a></code> object, the user agent <em>must</em> <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#import-scripts-into-worker-global-scope" id="ref-for-import-scripts-into-worker-global-scope">import scripts into worker global scope</a>, given this <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①④">ServiceWorkerGlobalScope</a></code> object and <var>urls</var>, and with the following<a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#fetching-scripts-perform-fetch" id="ref-for-fetching-scripts-perform-fetch">perform the fetch hook</a> steps, given the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request④">request</a> <var>request</var>:</p>
+      <p>When the <dfn class="dfn-paneled idl-code" data-dfn-for="ServiceWorkerGlobalScope" data-dfn-type="method" data-export id="importscripts-method"><code>importScripts(<var>urls</var>)</code></dfn> method is called on a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①④">ServiceWorkerGlobalScope</a></code> object, the user agent <em>must</em> <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#import-scripts-into-worker-global-scope" id="ref-for-import-scripts-into-worker-global-scope">import scripts into worker global scope</a>, given this <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑤">ServiceWorkerGlobalScope</a></code> object and <var>urls</var>, and with the following<a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#fetching-scripts-perform-fetch" id="ref-for-fetching-scripts-perform-fetch">perform the fetch hook</a> steps, given the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑤">request</a> <var>request</var>:</p>
       <ol>
        <li data-md>
-        <p>Let <var>serviceWorker</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client①">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global⑧">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②③">service worker</a>.</p>
+        <p>Let <var>serviceWorker</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client①">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global⑧">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②④">service worker</a>.</p>
        <li data-md>
         <p>Let <var>map</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource-map" id="ref-for-dfn-script-resource-map">script resource map</a>.</p>
        <li data-md>
@@ -3781,7 +3862,7 @@ <h4 class="heading settled" data-level="6.3.2" id="importscripts"><span class="s
          <li data-md>
           <p><var>registration</var>’s <a data-link-type="dfn" href="#dfn-update-via-cache" id="ref-for-dfn-update-via-cache①">update via cache mode</a> is "<code>none</code>".</p>
          <li data-md>
-          <p>The <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#current-global-object" id="ref-for-current-global-object③">current global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag" id="ref-for-serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag">force bypass cache for import scripts flag</a> is set.</p>
+          <p>The <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#current-global-object" id="ref-for-current-global-object④">current global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag" id="ref-for-serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag">force bypass cache for import scripts flag</a> is set.</p>
          <li data-md>
           <p><var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale">stale</a>.</p>
         </ul>
@@ -3805,7 +3886,7 @@ <h4 class="heading settled" data-level="6.3.2" id="importscripts"><span class="s
     <section>
      <h3 class="heading settled" data-level="6.4" id="cross-origin-resources"><span class="secno">6.4. </span><span class="content">Cross-Origin Resources and CORS</span><a class="self-link" href="#cross-origin-resources"></a></h3>
      <p><em>This section is non-normative.</em></p>
-     <p>Applications tend to cache items that come from a CDN or other <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①①">origin</a>. It is possible to request many of them directly using <code>&lt;script></code>, <code>&lt;img></code>, <code>&lt;video></code> and <code>&lt;link></code> elements. It would be hugely limiting if this sort of runtime collaboration broke when offline. Similarly, it is possible to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch⑧">fetch</a> many sorts of off-<a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①②">origin</a> resources when appropriate CORS headers are set. <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑦">Service workers</a> enable this by allowing <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑥">Caches</a></code> to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch⑨">fetch</a> and cache off-origin items. Some restrictions apply, however. First, unlike same-origin resources which are managed in the <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑦">Cache</a></code> as <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①①">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response②">responses</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-basic" id="ref-for-concept-filtered-response-basic">basic filtered response</a>, the objects stored are <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①②">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response③">responses</a> are either <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-cors" id="ref-for-concept-filtered-response-cors">CORS filtered responses</a> or <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-opaque" id="ref-for-concept-filtered-response-opaque">opaque filtered responses</a>. They can be passed to <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith③">event.respondWith(r)</a></code> method in the same manner as the <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①③">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response④">responses</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-basic" id="ref-for-concept-filtered-response-basic①">basic filtered responses</a>, but cannot be meaningfully created programmatically. These limitations are necessary to preserve the security invariants of the platform. Allowing <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑧">Caches</a></code> to store them allows applications to avoid re-architecting in most cases.</p>
+     <p>Applications tend to cache items that come from a CDN or other <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①①">origin</a>. It is possible to request many of them directly using <code>&lt;script></code>, <code>&lt;img></code>, <code>&lt;video></code> and <code>&lt;link></code> elements. It would be hugely limiting if this sort of runtime collaboration broke when offline. Similarly, it is possible to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch⑧">fetch</a> many sorts of off-<a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①②">origin</a> resources when appropriate CORS headers are set. <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑧">Service workers</a> enable this by allowing <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑥">Caches</a></code> to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch⑨">fetch</a> and cache off-origin items. Some restrictions apply, however. First, unlike same-origin resources which are managed in the <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑦">Cache</a></code> as <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①①">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response②">responses</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-basic" id="ref-for-concept-filtered-response-basic">basic filtered response</a>, the objects stored are <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①②">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response③">responses</a> are either <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-cors" id="ref-for-concept-filtered-response-cors">CORS filtered responses</a> or <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-opaque" id="ref-for-concept-filtered-response-opaque">opaque filtered responses</a>. They can be passed to <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-respondwith" id="ref-for-dom-fetchevent-respondwith③">event.respondWith(r)</a></code> method in the same manner as the <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①③">Response</a></code> objects whose corresponding <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-response" id="ref-for-concept-response-response④">responses</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-filtered-response-basic" id="ref-for-concept-filtered-response-basic①">basic filtered responses</a>, but cannot be meaningfully created programmatically. These limitations are necessary to preserve the security invariants of the platform. Allowing <code class="idl"><a data-link-type="idl" href="#cache" id="ref-for-cache①⑧">Caches</a></code> to store them allows applications to avoid re-architecting in most cases.</p>
     </section>
     <section>
      <h3 class="heading settled" data-level="6.5" id="path-restriction"><span class="secno">6.5. </span><span class="content">Path restriction</span><a class="self-link" href="#path-restriction"></a></h3>
@@ -3830,14 +3911,14 @@ <h3 class="heading settled" data-level="6.7" id="implementer-concerns"><span cla
      <p>The implementers are encouraged to note:</p>
      <ul>
       <li data-md>
-       <p>Plug-ins should not load via <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑧">service workers</a>. As plug-ins may get their security origins from their own urls, the embedding <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑨">service worker</a> cannot handle it. For this reason, the <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑥">Handle Fetch</a> algorithm makes <code>&lt;embed></code> and <code>&lt;object></code> requests immediately fallback to the network without dispatching <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event⑤">fetch</a></code> event.</p>
+       <p>Plug-ins should not load via <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑧⑨">service workers</a>. As plug-ins may get their security origins from their own urls, the embedding <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⓪">service worker</a> cannot handle it. For this reason, the <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑥">Handle Fetch</a> algorithm makes <code>&lt;embed></code> and <code>&lt;object></code> requests immediately fallback to the network without dispatching <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event⑥">fetch</a></code> event.</p>
       <li data-md>
-       <p>Some of the legacy networking stack code may need to be carefully audited to understand the ramifications of interactions with <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⓪">service workers</a>.</p>
+       <p>Some of the legacy networking stack code may need to be carefully audited to understand the ramifications of interactions with <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨①">service workers</a>.</p>
      </ul>
     </section>
     <section>
      <h3 class="heading settled" data-level="6.8" id="privacy"><span class="secno">6.8. </span><span class="content">Privacy</span><a class="self-link" href="#privacy"></a></h3>
-     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨①">Service workers</a> introduce new persistent storage features including <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map③">registration map</a> (for <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑦">service worker registrations</a> and their <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨②">service workers</a>), <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list⑤">request response list</a> and <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map⑤">name to cache map</a> (for caches), and <a data-link-type="dfn" href="#dfn-script-resource-map" id="ref-for-dfn-script-resource-map①">script resource map</a> (for script resources). In order to protect users from any potential <a data-link-type="biblio" href="#biblio-unsanctioned-tracking" title="Unsanctioned Web Tracking">unsanctioned tracking</a> threat, these persistent storages <em>should</em> be cleared when users intend to clear them and <em>should</em> maintain and interoperate with existing user controls e.g. purging all existing persistent storages.</p>
+     <p><a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨②">Service workers</a> introduce new persistent storage features including <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map③">registration map</a> (for <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration④⑦">service worker registrations</a> and their <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨③">service workers</a>), <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list⑤">request response list</a> and <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map⑤">name to cache map</a> (for caches), and <a data-link-type="dfn" href="#dfn-script-resource-map" id="ref-for-dfn-script-resource-map①">script resource map</a> (for script resources). In order to protect users from any potential <a data-link-type="biblio" href="#biblio-unsanctioned-tracking" title="Unsanctioned Web Tracking">unsanctioned tracking</a> threat, these persistent storages <em>should</em> be cleared when users intend to clear them and <em>should</em> maintain and interoperate with existing user controls e.g. purging all existing persistent storages.</p>
     </section>
    </section>
    <section>
@@ -3856,7 +3937,7 @@ <h3 class="heading settled" data-level="7.1" id="extension-to-service-worker-reg
     </section>
     <section>
      <h3 class="heading settled" data-level="7.2" id="extension-to-extendable-event"><span class="secno">7.2. </span><span class="content">Define Functional Event</span><a class="self-link" href="#extension-to-extendable-event"></a></h3>
-     <p>Specifications <em>may</em> define a <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①⓪">functional event</a> by extending <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⑤">ExtendableEvent</a></code> interface:</p>
+     <p>Specifications <em>may</em> define a <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①⓪">functional event</a> by extending <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⑥">ExtendableEvent</a></code> interface:</p>
 <pre class="example idl highlight def" data-no-idl id="example-85e5c3c4"><a class="self-link" href="#example-85e5c3c4"></a>// e.g. define FunctionalEvent interface
 <c- b>interface</c-> <c- g>FunctionalEvent</c-> : <c- n>ExtendableEvent</c-> {
   // add a functional event’s own attributes and methods
@@ -3865,7 +3946,7 @@ <h3 class="heading settled" data-level="7.2" id="extension-to-extendable-event">
     </section>
     <section>
      <h3 class="heading settled" data-level="7.3" id="extension-to-service-worker-global-scope"><span class="secno">7.3. </span><span class="content">Define Event Handler</span><a class="self-link" href="#extension-to-service-worker-global-scope"></a></h3>
-     <p>Specifications <em>may</em> define an event handler attribute for the corresponding <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①①">functional event</a> using <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-partial-interface" id="ref-for-dfn-partial-interface①">partial interface</a> definition to the <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑤">ServiceWorkerGlobalScope</a></code> interface:</p>
+     <p>Specifications <em>may</em> define an event handler attribute for the corresponding <a data-link-type="dfn" href="#dfn-functional-events" id="ref-for-dfn-functional-events①①">functional event</a> using <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-partial-interface" id="ref-for-dfn-partial-interface①">partial interface</a> definition to the <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑥">ServiceWorkerGlobalScope</a></code> interface:</p>
 <pre class="example idl highlight def" data-no-idl id="example-80342678"><a class="self-link" href="#example-80342678"></a><c- b>partial</c-> <c- b>interface</c-> <c- g>ServiceWorkerGlobalScope</c-> {
   <c- b>attribute</c-> <c- n>EventHandler</c-> <c- g>onfunctionalevent</c->;
 };
@@ -3879,7 +3960,7 @@ <h3 class="heading settled" data-level="7.4" id="firing-functional-events"><span
    <section>
     <h2 class="heading settled" id="algorithms"><span class="content">Appendix A: Algorithms</span><a class="self-link" href="#algorithms"></a></h2>
     <p>The following definitions are the user agent’s internal data structures used throughout the specification.</p>
-    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-scope-to-registration-map">registration map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map④">ordered map</a> where the keys are (<a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key④">storage key</a>, <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer⑤">serialized</a> <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①①">scope urls</a>) and the values are <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⓪">service worker registrations</a>.</p>
+    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-scope-to-registration-map">registration map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map⑤">ordered map</a> where the keys are (<a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key" id="ref-for-storage-key④">storage key</a>, <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer⑤">serialized</a> <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①①">scope urls</a>) and the values are <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⓪">service worker registrations</a>.</p>
     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-job">job</dfn> is an abstraction of one of register, update, and unregister request for a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤①">service worker registration</a>.</p>
     <div>
       A <a data-link-type="dfn" href="#dfn-job" id="ref-for-dfn-job">job</a> has a <dfn class="dfn-paneled" data-dfn-for="job" data-dfn-type="dfn" data-noexport id="dfn-job-type">job type</dfn>, which is one of <em>register</em>, <em>update</em>, and <em>unregister</em>. 
@@ -3903,8 +3984,8 @@ <h2 class="heading settled" id="algorithms"><span class="content">Appendix A: Al
       <p>For <em>unregister</em> <a data-link-type="dfn" href="#dfn-job" id="ref-for-dfn-job①⑤">jobs</a>, their <a data-link-type="dfn" href="#dfn-job-scope-url" id="ref-for-dfn-job-scope-url①">scope url</a> is the same.</p>
     </ul>
     <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-job-queue">job queue</dfn> is a thread safe <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#queue" id="ref-for-queue">queue</a> used to synchronize the set of concurrent <a data-link-type="dfn" href="#dfn-job" id="ref-for-dfn-job①⑥">jobs</a>. The <a data-link-type="dfn" href="#dfn-job-queue" id="ref-for-dfn-job-queue①">job queue</a> contains <a data-link-type="dfn" href="#dfn-job" id="ref-for-dfn-job①⑦">jobs</a> as its <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item⑦">items</a>. A <a data-link-type="dfn" href="#dfn-job-queue" id="ref-for-dfn-job-queue②">job queue</a> is initially empty.</p>
-    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-scope-to-job-queue-map">scope to job queue map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map⑤">ordered map</a> where the keys are <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①②">scope urls</a>, <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer⑥">serialized</a>, and the values are <a data-link-type="dfn" href="#dfn-job-queue" id="ref-for-dfn-job-queue③">job queues</a>.</p>
-    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-bad-import-script-response">bad import script response</dfn> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑥">response</a> for which any of the following conditions are met:</p>
+    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-scope-to-job-queue-map">scope to job queue map</dfn> is an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map⑥">ordered map</a> where the keys are <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①②">scope urls</a>, <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer⑥">serialized</a>, and the values are <a data-link-type="dfn" href="#dfn-job-queue" id="ref-for-dfn-job-queue③">job queues</a>.</p>
+    <p>A <dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="dfn-bad-import-script-response">bad import script response</dfn> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑦">response</a> for which any of the following conditions are met:</p>
     <ul>
      <li data-md>
       <p><var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-type" id="ref-for-concept-response-type②">type</a> is "<code>error</code>"</p>
@@ -4140,7 +4221,7 @@ <h3 class="heading settled" id="start-register-algorithm"><span class="content">
        <p>If <var>scriptURL</var> is failure, reject <var>promise</var> with a <code>TypeError</code> and abort these steps.</p>
       <li data-md>
        <p>Set <var>scriptURL</var>’s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-fragment" id="ref-for-concept-url-fragment①">fragment</a> to null.</p>
-       <p class="note" role="note"><span class="marker">Note:</span> The user agent does not store the <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-fragment" id="ref-for-concept-url-fragment②">fragment</a> of the script’s url. This means that the <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-fragment" id="ref-for-concept-url-fragment③">fragment</a> does not have an effect on identifying <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨③">service workers</a>.</p>
+       <p class="note" role="note"><span class="marker">Note:</span> The user agent does not store the <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-fragment" id="ref-for-concept-url-fragment②">fragment</a> of the script’s url. This means that the <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-fragment" id="ref-for-concept-url-fragment③">fragment</a> does not have an effect on identifying <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨④">service workers</a>.</p>
       <li data-md>
        <p>If <var>scriptURL</var>’s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme③">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", reject <var>promise</var> with a <code>TypeError</code> and abort these steps.</p>
       <li data-md>
@@ -4266,7 +4347,7 @@ <h3 class="heading settled" id="update-algorithm"><span class="content"><dfn cla
       <li data-md>
        <p>Let <var>hasUpdatedResources</var> be false.</p>
       <li data-md>
-       <p>Let <var>updatedResourceMap</var> be an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map⑥">ordered map</a> where the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys③">keys</a> are <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url" id="ref-for-concept-url①②">URLs</a> and the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values②">values</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑦">responses</a>.</p>
+       <p>Let <var>updatedResourceMap</var> be an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#ordered-map" id="ref-for-ordered-map⑦">ordered map</a> where the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys④">keys</a> are <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url" id="ref-for-concept-url①②">URLs</a> and the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values③">values</a> are <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑧">responses</a>.</p>
       <li data-md>
        <p>Switching on <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-worker-type" id="ref-for-dfn-job-worker-type⑤">worker type</a>, run these substeps with the following options:</p>
        <dl>
@@ -4302,7 +4383,7 @@ <h3 class="heading settled" id="update-algorithm"><span class="content"><dfn cla
         <li data-md>
          <p>Set <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-redirect-mode" id="ref-for-concept-request-redirect-mode">redirect mode</a> to "<code>error</code>".</p>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①①">Fetch</a> <var>request</var>, and asynchronously wait to run the remaining steps as part of fetch’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#process-response" id="ref-for-process-response①">processResponse</a> for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑧">response</a> <var>response</var>.</p>
+         <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①①">Fetch</a> <var>request</var>, and asynchronously wait to run the remaining steps as part of fetch’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#process-response" id="ref-for-process-response①">processResponse</a> for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑨">response</a> <var>response</var>.</p>
         <li data-md>
          <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-extract-mime-type" id="ref-for-concept-header-extract-mime-type①">Extract a MIME type</a> from the <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-header-list" id="ref-for-concept-response-header-list③">header list</a>. If this MIME type (ignoring parameters) is not a <a data-link-type="dfn" href="https://mimesniff.spec.whatwg.org/#javascript-mime-type" id="ref-for-javascript-mime-type②">JavaScript MIME type</a>, then:</p>
          <ol>
@@ -4383,7 +4464,7 @@ <h3 class="heading settled" id="update-algorithm"><span class="content"><dfn cla
             <li data-md>
              <p>If <var>importUrl</var> is <var>url</var>, then continue.</p>
             <li data-md>
-             <p>Let <var>importRequest</var> be a new <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑤">request</a> whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url⑥">url</a> is <var>importUrl</var>, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client②">client</a> is <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-client" id="ref-for-dfn-job-client①⑨">client</a>, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination①">destination</a> is "<code>script</code>", <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-parser-metadata" id="ref-for-concept-request-parser-metadata">parser metadata</a> is "<code>not parser-inserted</code>", and whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-use-url-credentials-flag" id="ref-for-concept-request-use-url-credentials-flag">use-URL-credentials flag</a> is set.</p>
+             <p>Let <var>importRequest</var> be a new <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑥">request</a> whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url⑥">url</a> is <var>importUrl</var>, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client②">client</a> is <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-client" id="ref-for-dfn-job-client①⑨">client</a>, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination①">destination</a> is "<code>script</code>", <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-parser-metadata" id="ref-for-concept-request-parser-metadata">parser metadata</a> is "<code>not parser-inserted</code>", and whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-use-url-credentials-flag" id="ref-for-concept-request-use-url-credentials-flag">use-URL-credentials flag</a> is set.</p>
             <li data-md>
              <p>Set <var>importRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-cache-mode" id="ref-for-concept-request-cache-mode②">cache mode</a> to "<code>no-cache</code>" if any of the following are true:</p>
              <ul>
@@ -4436,7 +4517,7 @@ <h3 class="heading settled" id="update-algorithm"><span class="content"><dfn cla
          <p>Invoke <a data-link-type="dfn" href="#finish-job" id="ref-for-finish-job⑦">Finish Job</a> with <var>job</var> and abort these steps.</p>
        </ol>
       <li data-md>
-       <p>Let <var>worker</var> be a new <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨④">service worker</a>.</p>
+       <p>Let <var>worker</var> be a new <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑤">service worker</a>.</p>
       <li data-md>
        <p>Set <var>worker</var>’s <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url⑤">script url</a> to <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-script-url" id="ref-for-dfn-job-script-url①①">script url</a>, <var>worker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource④">script resource</a> to <var>script</var>, <var>worker</var>’s <a data-link-type="dfn" href="#dfn-type" id="ref-for-dfn-type③">type</a> to <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-worker-type" id="ref-for-dfn-job-worker-type⑦">worker type</a>, and <var>worker</var>’s <a data-link-type="dfn" href="#dfn-script-resource-map" id="ref-for-dfn-script-resource-map④">script resource map</a> to <var>updatedResourceMap</var>.</p>
       <li data-md>
@@ -4497,7 +4578,7 @@ <h3 class="heading settled" id="installation-algorithm"><span class="content"><d
       <dd data-md>
        <p><var>job</var>, a <a data-link-type="dfn" href="#dfn-job" id="ref-for-dfn-job②⑥">job</a></p>
       <dd data-md>
-       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑤">service worker</a></p>
+       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑥">service worker</a></p>
       <dd data-md>
        <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤④">service worker registration</a></p>
       <dt data-md>Output
@@ -4549,7 +4630,7 @@ <h3 class="heading settled" id="installation-algorithm"><span class="content"><d
            <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task②⑦">Queue a task</a> <var>task</var> on <var>installingWorker</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-loop" id="ref-for-event-loop⑨">event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⓪">DOM manipulation task source</a> to run the following steps:</p>
            <ol>
             <li data-md>
-             <p>Let <var>e</var> be the result of <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-create" id="ref-for-concept-event-create②">creating an event</a> with <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⑥">ExtendableEvent</a></code>.</p>
+             <p>Let <var>e</var> be the result of <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-create" id="ref-for-concept-event-create②">creating an event</a> with <code class="idl"><a data-link-type="idl" href="#installevent" id="ref-for-installevent①">InstallEvent</a></code>.</p>
             <li data-md>
              <p>Initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#dom-event-type" id="ref-for-dom-event-type">type</a></code> attribute to <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-install-event" id="ref-for-service-worker-global-scope-install-event⑤">install</a></code>.</p>
             <li data-md>
@@ -4594,7 +4675,7 @@ <h3 class="heading settled" id="installation-algorithm"><span class="content"><d
        <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-iterate" id="ref-for-map-iterate⑤">For each</a> <var>url</var> of <var>map</var>:</p>
        <ol>
         <li data-md>
-         <p>If <var>usedSet</var> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain">contain</a> <var>url</var>, then <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove④">remove</a> <var>map</var>[<var>url</var>].</p>
+         <p>If <var>usedSet</var> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain②">contain</a> <var>url</var>, then <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove④">remove</a> <var>map</var>[<var>url</var>].</p>
        </ol>
       <li data-md>
        <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker⑤">waiting worker</a> is not null, then:</p>
@@ -4649,7 +4730,7 @@ <h3 class="heading settled" id="activation-algorithm"><span class="content"><dfn
        <p class="note" role="note"><span class="marker">Note:</span> Once an active worker is activating, neither a runtime script error nor a force termination of the active worker prevents the active worker from getting activated.</p>
        <p class="note" role="note"><span class="marker">Note:</span> Make sure to design activation handlers to do non-essential work (like cleanup). This is because activation handlers may not all run to completion, especially in the case of browser termination during activation. A Service Worker should be designed to function properly, even if the activation handlers do not all complete successfully.</p>
       <li data-md>
-       <p>Let <var>matchedClients</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⓪">list</a> of <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③⑨">service worker clients</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-creation-url" id="ref-for-concept-environment-creation-url⑦">creation URL</a> <a data-link-type="dfn" href="#match-service-worker-registration" id="ref-for-match-service-worker-registration⑥">matches</a> <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①②">storage key</a> and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①⑦">scope url</a>.</p>
+       <p>Let <var>matchedClients</var> be a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②②">list</a> of <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client③⑨">service worker clients</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-creation-url" id="ref-for-concept-environment-creation-url⑦">creation URL</a> <a data-link-type="dfn" href="#match-service-worker-registration" id="ref-for-match-service-worker-registration⑥">matches</a> <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①②">storage key</a> and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①⑦">scope url</a>.</p>
       <li data-md>
        <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑤">For each</a> <var>client</var> of <var>matchedClients</var>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task②⑨">queue a task</a> on <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①⑥">responsible event loop</a>, using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②①">DOM manipulation task source</a>, to run the following substeps:</p>
        <ol>
@@ -4724,34 +4805,36 @@ <h3 class="heading settled" id="try-activate-algorithm"><span class="content"><d
        </ul>
      </ol>
     </section>
-    <section class="algorithm" data-algorithm="Run Service Worker">
-     <h3 class="heading settled" id="run-service-worker-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="run-service-worker">Run Service Worker</dfn></span><a class="self-link" href="#run-service-worker-algorithm"></a></h3>
+    <section class="algorithm" data-algorithm="Setup ServiceWorkerGlobalScope">
+     <h3 class="heading settled" id="setup-serviceworkerglobalscope"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="setup-serviceworkerglobalscope①">Setup ServiceWorkerGlobalScope</dfn></span><a class="self-link" href="#setup-serviceworkerglobalscope"></a></h3>
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑥">service worker</a></p>
-      <dd data-md>
-       <p><var>forceBypassCache</var>, an optional boolean, false by default</p>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑦">service worker</a></p>
       <dt data-md>Output
       <dd data-md>
-       <p>a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-completion-record-specification-type" id="ref-for-sec-completion-record-specification-type②">Completion</a> or <em>failure</em></p>
+       <p>a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑦">ServiceWorkerGlobalScope</a></code> object or null</p>
      </dl>
-     <p class="note" role="note"><span class="marker">Note:</span> This algorithm blocks until the service worker is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running">running</a> or fails to start.</p>
+     <p class="note" role="note"><span class="marker">Note:</span> This algorithm returns a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑧">ServiceWorkerGlobalScope</a></code> usable for a CSP check, or null. If <var>serviceWorker</var> has an active <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑨">ServiceWorkerGlobalScope</a></code>, then it is returned. Otherwise, the object will be newly created.</p>
+     <div class="note" role="note">
+       This algorithm does the minimal setup for the service worker that is necessary to create something usable for security checks like CSP and COEP. This specification ensures that this algorithm is called before any such checks are performed. 
+      <p>In specifications, such security checks require creating a <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope②⓪">ServiceWorkerGlobalScope</a></code>, a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②⑧">relevant settings object</a>, a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-global-object-realm" id="ref-for-concept-global-object-realm①">realm</a>, and an <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#agent" id="ref-for-agent">agent</a>. In implementations, the amount of work required might be much less. Therefore, implementations could do less work in their equivalent of this algorithm, and more work in <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑥">Run Service Worker</a>, as long as the results are observably equivalent. (And in particular, as long as all security checks have the same result.)</p>
+     </div>
      <ol>
       <li data-md>
        <p>Let <var>unsafeCreationTime</var> be the <a data-link-type="dfn" href="https://w3c.github.io/hr-time/#dfn-unsafe-shared-current-time" id="ref-for-dfn-unsafe-shared-current-time">unsafe shared current time</a>.</p>
       <li data-md>
-       <p>If <var>serviceWorker</var> is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running①">running</a>, then return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status">start status</a>.</p>
+       <p>If <var>serviceWorker</var> is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running">running</a>, then return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object③">global object</a>.</p>
       <li data-md>
-       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state⑧">state</a> is "<code>redundant</code>", then return <em>failure</em>.</p>
+       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state⑧">state</a> is "<code>redundant</code>", then return null.</p>
       <li data-md>
-       <p class="assertion">Assert: <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status①">start status</a> is null.</p>
+       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object④">global object</a> is not null, then return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑤">global object</a>.</p>
       <li data-md>
-       <p>Let <var>script</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑥">script resource</a>.</p>
+       <p class="assertion">Assert: <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status">start status</a> is null.</p>
       <li data-md>
-       <p class="assertion">Assert: <var>script</var> is not null.</p>
+       <p>Let <var>setupFailed</var> be false.</p>
       <li data-md>
-       <p>Let <var>startFailed</var> be false.</p>
+       <p>Let <var>globalObject</var> be null.</p>
       <li data-md>
        <p>Let <var>agent</var> be the result of <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#obtain-a-service-worker-agent" id="ref-for-obtain-a-service-worker-agent">obtaining a service worker agent</a>, and run the following steps in that context:</p>
        <ol>
@@ -4759,10 +4842,8 @@ <h3 class="heading settled" id="run-service-worker-algorithm"><span class="conte
          <p>Let <var>realmExecutionContext</var> be the result of <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#creating-a-new-javascript-realm" id="ref-for-creating-a-new-javascript-realm">creating a new realm</a> given <var>agent</var> and the following customizations:</p>
          <ul>
           <li data-md>
-           <p>For the global object, create a new <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope①⑥">ServiceWorkerGlobalScope</a></code> object. Let <var>workerGlobalScope</var> be the created object.</p>
+           <p>For the global object, create a new <code class="idl"><a data-link-type="idl" href="#serviceworkerglobalscope" id="ref-for-serviceworkerglobalscope②①">ServiceWorkerGlobalScope</a></code> object. Let <var>workerGlobalScope</var> be the created object.</p>
          </ul>
-        <li data-md>
-         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object③">global object</a> to <var>workerGlobalScope</var>.</p>
         <li data-md>
          <p>Let <var>settingsObject</var> be a new <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②①">environment settings object</a> whose algorithms are defined as follows:</p>
          <dl>
@@ -4790,15 +4871,67 @@ <h3 class="heading settled" id="run-service-worker-algorithm"><span class="conte
         <li data-md>
          <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-url" id="ref-for-concept-workerglobalscope-url">url</a> to <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url⑨">script url</a>.</p>
         <li data-md>
-         <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-policy-container" id="ref-for-concept-workerglobalscope-policy-container①">policy container</a> to <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑦">script resource</a>’s <a data-link-type="dfn" href="#dfn-policy-container" id="ref-for-dfn-policy-container①">policy container</a>.</p>
+         <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-policy-container" id="ref-for-concept-workerglobalscope-policy-container①">policy container</a> to <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑥">script resource</a>’s <a data-link-type="dfn" href="#dfn-policy-container" id="ref-for-dfn-policy-container①">policy container</a>.</p>
         <li data-md>
          <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-type" id="ref-for-concept-workerglobalscope-type">type</a> to <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-type" id="ref-for-dfn-type⑤">type</a>.</p>
-        <li data-md>
-         <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="#serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag" id="ref-for-serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag①">force bypass cache for import scripts flag</a> if <var>forceBypassCache</var> is true.</p>
         <li data-md>
          <p>Create a new <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/workers.html#workerlocation" id="ref-for-workerlocation">WorkerLocation</a></code> object and associate it with <var>workerGlobalScope</var>.</p>
         <li data-md>
-         <p>If the <a data-link-type="dfn" href="https://w3c.github.io/webappsec-csp/#run-global-object-csp-initialization" id="ref-for-run-global-object-csp-initialization">run CSP initialization for a global object</a> algorithm returns "<code>Blocked</code>" when executed upon <var>workerGlobalScope</var>, set <var>startFailed</var> to true and abort these steps.</p>
+         <p>If the <a data-link-type="dfn" href="https://w3c.github.io/webappsec-csp/#run-global-object-csp-initialization" id="ref-for-run-global-object-csp-initialization">run CSP initialization for a global object</a> algorithm returns "<code>Blocked</code>" when executed upon <var>workerGlobalScope</var>, set <var>setupFailed</var> to true and abort these steps.</p>
+        <li data-md>
+         <p>Set <var>globalObject</var> to <var>workerGlobalScope</var>.</p>
+       </ol>
+      <li data-md>
+       <p>Wait for <var>globalObject</var> is not null, or for <var>setupFailed</var> to be true.</p>
+      <li data-md>
+       <p>If <var>setupFailed</var> is true, then return null.</p>
+      <li data-md>
+       <p>Return <var>globalObject</var>.</p>
+     </ol>
+    </section>
+    <section class="algorithm" data-algorithm="Run Service Worker">
+     <h3 class="heading settled" id="run-service-worker-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="run-service-worker">Run Service Worker</dfn></span><a class="self-link" href="#run-service-worker-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑧">service worker</a></p>
+      <dd data-md>
+       <p><var>forceBypassCache</var>, an optional boolean, false by default</p>
+      <dt data-md>Output
+      <dd data-md>
+       <p>a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-completion-record-specification-type" id="ref-for-sec-completion-record-specification-type②">Completion</a> or <em>failure</em></p>
+     </dl>
+     <p class="note" role="note"><span class="marker">Note:</span> This algorithm blocks until the service worker is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running①">running</a> or fails to start.</p>
+     <ol>
+      <li data-md>
+       <p>If <var>serviceWorker</var> is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running②">running</a>, then return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status①">start status</a>.</p>
+      <li data-md>
+       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state⑨">state</a> is "<code>redundant</code>", then return <em>failure</em>.</p>
+      <li data-md>
+       <p class="assertion">Assert: <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status②">start status</a> is null.</p>
+      <li data-md>
+       <p>Let <var>script</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑦">script resource</a>.</p>
+      <li data-md>
+       <p class="assertion">Assert: <var>script</var> is not null.</p>
+      <li data-md>
+       <p>Let <var>startFailed</var> be false.</p>
+      <li data-md>
+       <p>Let <var>workerGlobalScope</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑥">global object</a>.</p>
+      <li data-md>
+       <p>If <var>workerGlobalScope</var> is null:</p>
+       <ol>
+        <li data-md>
+         <p>Set <var>workerGlobalScope</var> to be the result of running the <a data-link-type="dfn" href="#setup-serviceworkerglobalscope①" id="ref-for-setup-serviceworkerglobalscope①">Setup ServiceWorkerGlobalScope</a> algorithm with <var>serviceWorker</var>.</p>
+        <li data-md>
+         <p>If <var>workerGlobalScope</var> is null, then return <em>failure</em>.</p>
+        <li data-md>
+         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑦">global object</a> to <var>workerGlobalScope</var>.</p>
+       </ol>
+      <li data-md>
+       <p>Obtain agent for <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#realm-execution-context" id="ref-for-realm-execution-context①">realm execution context</a>, and run the following steps in that context:</p>
+       <ol>
+        <li data-md>
+         <p>Set <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="#serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag" id="ref-for-serviceworkerglobalscope-force-bypass-cache-for-import-scripts-flag①">force bypass cache for import scripts flag</a> if <var>forceBypassCache</var> is true.</p>
         <li data-md>
          <p>If <var>serviceWorker</var> is an <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③④">active worker</a>, and there are any <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-task" id="ref-for-concept-task⑤">tasks</a> queued in <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①⑥">containing service worker registration</a>’s <a data-link-type="dfn" href="#dfn-service-worker-registration-task-queue" id="ref-for-dfn-service-worker-registration-task-queue②">task queues</a>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③①">queue</a> them to <var>serviceWorker</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-loop" id="ref-for-event-loop①①">event loop</a>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-queue" id="ref-for-task-queue③">task queues</a> in the same order using their original <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#task-source" id="ref-for-task-source⑤">task sources</a>.</p>
         <li data-md>
@@ -4834,7 +4967,7 @@ <h3 class="heading settled" id="run-service-worker-algorithm"><span class="conte
         <li data-md>
          <p>If the script was aborted by the <a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker⑤">Terminate Service Worker</a> algorithm, set <var>startFailed</var> to true and abort these steps.</p>
         <li data-md>
-         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status②">start status</a> to <var>evaluationStatus</var>.</p>
+         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status③">start status</a> to <var>evaluationStatus</var>.</p>
         <li data-md>
          <p>If <var>script</var>’s <a data-link-type="dfn" href="#dfn-has-ever-been-evaluated-flag" id="ref-for-dfn-has-ever-been-evaluated-flag">has ever been evaluated flag</a> is unset, then:</p>
          <ol>
@@ -4842,9 +4975,9 @@ <h3 class="heading settled" id="run-service-worker-algorithm"><span class="conte
            <p>For each <var>eventType</var> of <var>settingsObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-global" id="ref-for-concept-settings-object-global①⓪">global object</a>'s associated list of <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-listener" id="ref-for-concept-event-listener①">event listeners</a>' event types:</p>
            <ol>
             <li data-md>
-             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#set-append" id="ref-for-set-append②">Append</a> <var>eventType</var> to <var>workerGlobalScope</var>’s associated <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②④">service worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle">set of event types to handle</a>.</p>
+             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#set-append" id="ref-for-set-append②">Append</a> <var>eventType</var> to <var>workerGlobalScope</var>’s associated <a data-link-type="dfn" href="#serviceworkerglobalscope-service-worker" id="ref-for-serviceworkerglobalscope-service-worker②⑤">service worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle①">set of event types to handle</a>.</p>
            </ol>
-           <p class="note" role="note"><span class="marker">Note:</span> If the global object’s associated list of event listeners does not have any event listener added at this moment, the service worker’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle①">set of event types to handle</a> remains an empty set.</p>
+           <p class="note" role="note"><span class="marker">Note:</span> If the global object’s associated list of event listeners does not have any event listener added at this moment, the service worker’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle②">set of event types to handle</a> remains an empty set.</p>
           <li data-md>
            <p>Set <var>script</var>’s <a data-link-type="dfn" href="#dfn-has-ever-been-evaluated-flag" id="ref-for-dfn-has-ever-been-evaluated-flag①">has ever been evaluated flag</a>.</p>
           <li data-md>
@@ -4858,11 +4991,11 @@ <h3 class="heading settled" id="run-service-worker-algorithm"><span class="conte
          <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-clear" id="ref-for-map-clear">Clear</a> <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#map-of-active-timers" id="ref-for-map-of-active-timers">map of active timers</a>.</p>
        </ol>
       <li data-md>
-       <p>Wait for <var>serviceWorker</var> to be <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running②">running</a>, or for <var>startFailed</var> to be true.</p>
+       <p>Wait for <var>serviceWorker</var> to be <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running③">running</a>, or for <var>startFailed</var> to be true.</p>
       <li data-md>
        <p>If <var>startFailed</var> is true, then return <em>failure</em>.</p>
       <li data-md>
-       <p>Return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status③">start status</a>.</p>
+       <p>Return <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status④">start status</a>.</p>
      </ol>
     </section>
     <section class="algorithm" data-algorithm="All Fetch Listeners Are Empty">
@@ -4870,14 +5003,14 @@ <h3 class="heading settled" id="all-fetch-listeners-are-empty-algorithm"><span c
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>workerGlobalScope</var>, a <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object④">global object</a>.</p>
+       <p><var>workerGlobalScope</var>, a <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑧">global object</a>.</p>
       <dt data-md>Output
       <dd data-md>
        <p>a boolean</p>
      </dl>
      <ol>
       <li data-md>
-       <p>If <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle②">set of event types to handle</a> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain①">contain</a> <code>fetch</code>, then return true.</p>
+       <p>If <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle③">set of event types to handle</a> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain③">contain</a> <code>fetch</code>, then return true.</p>
       <li data-md>
        <p>Let <var>eventHandler</var> be <var>workerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-map" id="ref-for-event-handler-map">event handler map</a>["onfetch"]'s value.</p>
       <li data-md>
@@ -4908,7 +5041,7 @@ <h3 class="heading settled" id="terminate-service-worker-algorithm"><span class=
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑦">service worker</a></p>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑨">service worker</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
@@ -4918,7 +5051,7 @@ <h3 class="heading settled" id="terminate-service-worker-algorithm"><span class=
        <p>Run the following steps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③②">in parallel</a> with <var>serviceWorker</var>’s main loop:</p>
        <ol>
         <li data-md>
-         <p>Let <var>serviceWorkerGlobalScope</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑤">global object</a>.</p>
+         <p>Let <var>serviceWorkerGlobalScope</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑨">global object</a>.</p>
         <li data-md>
          <p>Set <var>serviceWorkerGlobalScope</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#dom-workerglobalscope-closing" id="ref-for-dom-workerglobalscope-closing">closing</a> flag to true.</p>
         <li data-md>
@@ -4929,34 +5062,26 @@ <h3 class="heading settled" id="terminate-service-worker-algorithm"><span class=
         <li data-md>
          <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#abort-a-running-script" id="ref-for-abort-a-running-script">Abort the script</a> currently running in <var>serviceWorker</var>.</p>
         <li data-md>
-         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status④">start status</a> to null.</p>
+         <p>Set <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-start-status" id="ref-for-service-worker-start-status⑤">start status</a> to null.</p>
        </ol>
      </ol>
     </section>
     <section class="algorithm" data-algorithm="Handle Fetch">
      <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-export id="handle-fetch">Handle Fetch</dfn></span><a class="self-link" href="#on-fetch-request-algorithm"></a></h3>
-     <p>The <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑦">Handle Fetch</a> algorithm is the entry point for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①③">fetch</a> handling handed to the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑧">service worker</a> context.</p>
+     <p>The <a data-link-type="dfn" href="#handle-fetch" id="ref-for-handle-fetch⑦">Handle Fetch</a> algorithm is the entry point for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①③">fetch</a> handling handed to the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⓪">service worker</a> context.</p>
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑥">request</a></p>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑦">request</a></p>
       <dd data-md>
        <p><var>controller</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller" id="ref-for-fetch-controller①">fetch controller</a></p>
       <dd data-md>
        <p><var>useHighResPerformanceTimers</var>, a boolean</p>
       <dt data-md>Output
       <dd data-md>
-       <p><var>response</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response⑨">response</a></p>
+       <p>a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①⓪">response</a></p>
      </dl>
      <ol>
-      <li data-md>
-       <p>Let <var>handleFetchFailed</var> be false.</p>
-      <li data-md>
-       <p>Let <var>respondWithEntered</var> be false.</p>
-      <li data-md>
-       <p>Let <var>eventCanceled</var> be false.</p>
-      <li data-md>
-       <p>Let <var>response</var> be null.</p>
       <li data-md>
        <p>Let <var>registration</var> be null.</p>
       <li data-md>
@@ -4967,8 +5092,6 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
        <p>Let <var>preloadResponse</var> be a new <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects②⑨">promise</a>.</p>
       <li data-md>
        <p>Let <var>workerRealm</var> be null.</p>
-      <li data-md>
-       <p>Let <var>eventHandled</var> be null.</p>
       <li data-md>
        <p>Let <var>timingInfo</var> be a new <a data-link-type="dfn" href="#service-worker-timing-info" id="ref-for-service-worker-timing-info">service worker timing info</a>.</p>
       <li data-md>
@@ -5006,73 +5129,237 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
          <p>If <var>registration</var> is null or <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑤">active worker</a> is null, return null.</p>
         <li data-md>
          <p>If <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination④">destination</a> is not <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#dom-requestdestination-report" id="ref-for-dom-requestdestination-report">"report"</a></code>, set <var>reservedClient</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑥">active service worker</a> to <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑥">active worker</a>.</p>
+       </ol>
+       <p class="note" role="note"><span class="marker">Note:</span> From this point, the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client④③">service worker client</a> starts to <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use④">use</a> its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑦">active service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①⑧">containing service worker registration</a>.</p>
+      <li data-md>
+       <p>Else if <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request">subresource request</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>If <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑧">active service worker</a> is non-null, set <var>registration</var> to <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑨">active service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①⑨">containing service worker registration</a>.</p>
+        <li data-md>
+         <p>Else, return null.</p>
+       </ol>
+      <li data-md>
+       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑦">active worker</a>.</p>
+      <li data-md>
+       <p>Let <var>shouldSoftUpdate</var> be true if any of the following are true, and false otherwise:</p>
+       <ul>
+        <li data-md>
+         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request①">non-subresource request</a>.</p>
         <li data-md>
-         <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#navigation-request" id="ref-for-navigation-request①">navigation request</a>, <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-navigation-preload-enabled-flag" id="ref-for-service-worker-registration-navigation-preload-enabled-flag③">navigation preload enabled flag</a> is set, <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑤">method</a> is `<code>GET</code>`, <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑦">active worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle③">set of event types to handle</a> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain②">contains</a> <code>fetch</code>, and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑧">active worker</a>'s <a data-link-type="dfn" href="#service-worker-all-fetch-listeners-are-empty-flag" id="ref-for-service-worker-all-fetch-listeners-are-empty-flag②">all fetch listeners are empty flag</a> is not set then:</p>
-         <p class="note" role="note"><span class="marker">Note:</span> If the above is true except <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑨">active worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle④">set of event types to handle</a> <strong>does not</strong> contain <code>fetch</code>, then the user agent may wish to show a console warning, as the developer’s intent isn’t clear.</p>
+         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request①">subresource request</a> and <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale③">stale</a>.</p>
+       </ul>
+      <li data-md>
+       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#service-worker-list-of-router-rules" id="ref-for-service-worker-list-of-router-rules②">list of router rules</a> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-is-empty" id="ref-for-list-is-empty③">is not empty</a>:</p>
+       <ol>
+        <li data-md>
+         <p>Let <var>source</var> be the result of running the <a data-link-type="dfn" href="#get-router-source" id="ref-for-get-router-source">Get Router Source</a> algorithm with <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑧">active worker</a> and <var>request</var>.</p>
+        <li data-md>
+         <p>If <var>source</var> is <code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-network" id="ref-for-dom-routersourceenum-network">"network"</a></code>:</p>
          <ol>
           <li data-md>
-           <p>Let <var>preloadRequest</var> be the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-clone" id="ref-for-concept-request-clone">cloning</a> the request <var>request</var>.</p>
+           <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③③">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update①">Soft Update</a> algorithm with <var>registration</var>.</p>
           <li data-md>
-           <p>Let <var>preloadRequestHeaders</var> be <var>preloadRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-header-list" id="ref-for-concept-request-header-list①">header list</a>.</p>
+           <p>Return null.</p>
+         </ol>
+        <li data-md>
+         <p>Else if <var>source</var> is <code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-cache" id="ref-for-dom-routersourceenum-cache">"cache"</a></code>, or <var>source</var>["<code class="idl"><a data-link-type="idl" href="#dom-routersourcedict-cachename" id="ref-for-dom-routersourcedict-cachename">cacheName</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists⑦">exists</a>, then:</p>
+         <ol>
           <li data-md>
-           <p>Let <var>preloadResponseObject</var> be a new <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①④">Response</a></code> object associated with a new <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#headers" id="ref-for-headers②">Headers</a></code> object whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-headers-guard" id="ref-for-concept-headers-guard②">guard</a> is "<code>immutable</code>".</p>
+           <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③④">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update②">Soft Update</a> algorithm with <var>registration</var>.</p>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-list-append" id="ref-for-concept-header-list-append">Append</a> to <var>preloadRequestHeaders</var> a new <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header②">header</a> whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name②">name</a> is `<code>Service-Worker-Navigation-Preload</code>` and <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-value" id="ref-for-concept-header-value">value</a> is <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-navigation-preload-header-value" id="ref-for-service-worker-registration-navigation-preload-header-value②">navigation preload header value</a>.</p>
+           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-iterate" id="ref-for-map-iterate⑥">For each</a> <var>cacheName</var> → <var>cache</var> of the <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①③">storage key</a>'s <a data-link-type="dfn" href="#dfn-name-to-cache-map" id="ref-for-dfn-name-to-cache-map⑥">name to cache map</a>.</p>
+           <ol>
+            <li data-md>
+             <p>If <var>source</var>["<code class="idl"><a data-link-type="idl" href="#dom-routersourcedict-cachename" id="ref-for-dom-routersourcedict-cachename①">cacheName</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists⑧">exists</a> and <var>source</var>["<code class="idl"><a data-link-type="idl" href="#dom-routersourcedict-cachename" id="ref-for-dom-routersourcedict-cachename②">cacheName</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#string-is" id="ref-for-string-is">is</a> not <var>cacheName</var>, <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#iteration-continue" id="ref-for-iteration-continue⑨">continue</a>.</p>
+            <li data-md>
+             <p>Let <var>requestResponses</var> be the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache②">Query Cache</a> with <var>request</var>, a new <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑥">CacheQueryOptions</a></code>, and <var>cache</var>.</p>
+            <li data-md>
+             <p>If <var>requestResponses</var> is an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②③">list</a>, return null.</p>
+            <li data-md>
+             <p>Else:</p>
+             <ol>
+              <li data-md>
+               <p>Let <var>requestResponse</var> be the first element of <var>requestResponses</var>.</p>
+              <li data-md>
+               <p>Let <var>response</var> be <var>requestResponse</var>’s response.</p>
+              <li data-md>
+               <p>Let <var>globalObject</var> be <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⓪">global object</a>.</p>
+              <li data-md>
+               <p>If <var>globalObject</var> is null:</p>
+               <ol>
+                <li data-md>
+                 <p>Set <var>globalObject</var> to the result of running <a data-link-type="dfn" href="#setup-serviceworkerglobalscope①" id="ref-for-setup-serviceworkerglobalscope①①">Setup ServiceWorkerGlobalScope</a> with <var>activeWorker</var>.</p>
+               </ol>
+              <li data-md>
+               <p>If <var>globalObject</var> is null, return null.</p>
+             </ol>
+             <p class="note" role="note"><span class="marker">Note:</span> This only creates a ServiceWorkerGlobalScope because CORS checks require that. It is not expected that implementations will actually create a ServiceWorkerGlobalScope here.</p>
+             <ol>
+              <li data-md>
+               <p>If <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-type" id="ref-for-concept-response-type③">type</a> is "<code>opaque</code>", and <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#cross-origin-resource-policy-check" id="ref-for-cross-origin-resource-policy-check①">cross-origin resource policy check</a> with <var>globalObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑦">origin</a>, <var>globalObject</var>, "", and <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-internal-response" id="ref-for-concept-internal-response①">internal response</a> returns <b>blocked</b>, then return null.</p>
+              <li data-md>
+               <p>Return <var>response</var>.</p>
+             </ol>
+           </ol>
           <li data-md>
-           <p>Set <var>preloadRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#request-service-workers-mode" id="ref-for-request-service-workers-mode③">service-workers mode</a> to "<code>none</code>".</p>
+           <p>Return null.</p>
+         </ol>
+        <li data-md>
+         <p>Else if <var>source</var> is <code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-race-network-and-fetch-handler" id="ref-for-dom-routersourceenum-race-network-and-fetch-handler①">"race-network-and-fetch-handler"</a></code>, and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑤">method</a> is `<code>GET</code>` then:</p>
+         <ol>
+          <li data-md>
+           <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑤">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update③">Soft Update</a> algorithm with <var>registration</var>.</p>
+          <li data-md>
+           <p>Let <var>queue</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#queue" id="ref-for-queue①">queue</a> of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①①">response</a>.</p>
+          <li data-md>
+           <p>Let <var>raceFetchController</var> be null.</p>
           <li data-md>
-           <p>Let <var>preloadFetchController</var> be null.</p>
+           <p>Let <var>raceResponse</var> be a <a data-link-type="dfn" href="#dfn-race-response" id="ref-for-dfn-race-response①">race response</a> whose <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value">value</a> is "<code>pending</code>".</p>
           <li data-md>
-           <p>Run the following substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③③">in parallel</a>, but <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#abort-when" id="ref-for-abort-when">abort when</a> <var>controller</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-state" id="ref-for-fetch-controller-state">state</a> is "<code>terminated</code>" or "<code>aborted</code>":</p>
+           <p>Run the following substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑥">in parallel</a>, but <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#abort-when" id="ref-for-abort-when">abort when</a> <var>controller</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-state" id="ref-for-fetch-controller-state">state</a> is "<code>terminated</code>" or "<code>aborted</code>":</p>
            <ol>
             <li data-md>
-             <p>Set <var>preloadFetchController</var> to the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①④">fetching</a> <var>preloadRequest</var>.</p>
-             <p>To <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#process-response" id="ref-for-process-response②">processResponse</a> for <var>navigationPreloadResponse</var>, run these substeps:</p>
+             <p>Set <var>raceFetchController</var> to the result of calling <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①④">fetch</a> given <var>request</var>, with <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#process-response" id="ref-for-process-response②">processResponse</a> set to the following steps given a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①②">response</a> <var>raceNetworkRequestResponse</var>:</p>
              <ol>
               <li data-md>
-               <p>If <var>navigationPreloadResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-type" id="ref-for-concept-response-type③">type</a> is "<code>error</code>", reject <var>preloadResponse</var> with a <code>TypeError</code> and terminate these substeps.</p>
+               <p>If <var>raceNetworkRequestResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-status" id="ref-for-concept-response-status③">status</a> is <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#ok-status" id="ref-for-ok-status②">ok status</a>, then:</p>
+               <ol>
+                <li data-md>
+                 <p>Set <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value①">value</a> to <var>raceNetworkRequestResponse</var>.</p>
+                <li data-md>
+                 <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#queue-enqueue" id="ref-for-queue-enqueue②">Enqueue</a> <var>raceNetworkRequestResponse</var> to <var>queue</var>.</p>
+               </ol>
               <li data-md>
-               <p>Associate <var>preloadResponseObject</var> with <var>navigationPreloadResponse</var>.</p>
-              <li data-md>
-               <p>Resolve <var>preloadResponse</var> with <var>preloadResponseObject</var>.</p>
+               <p>Otherwise, set <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value②">value</a> to a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error⑦">network error</a>.</p>
              </ol>
            </ol>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#if-aborted" id="ref-for-if-aborted">If aborted</a>, then:</p>
+           <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#if-aborted" id="ref-for-if-aborted">If aborted</a> and <var>raceFetchController</var> is not null, then:</p>
            <ol>
             <li data-md>
-             <p>Let <var>deserializedError</var> be the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#deserialize-a-serialized-abort-reason" id="ref-for-deserialize-a-serialized-abort-reason">deserialize a serialized abort reason</a> given null and <var>workerRealm</var>.</p>
+             <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-abort" id="ref-for-fetch-controller-abort②">Abort</a> <var>raceFetchController</var>.</p>
             <li data-md>
-             <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-abort" id="ref-for-fetch-controller-abort②">Abort</a> <var>preloadFetchController</var> with <var>deserializedError</var>.</p>
+             <p>Set <var>raceResponse</var> to a <a data-link-type="dfn" href="#dfn-race-response" id="ref-for-dfn-race-response②">race response</a> whose <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value③">value</a> is null.</p>
            </ol>
+          <li data-md>
+           <p>Resolve <var>preloadResponse</var> with undefined.</p>
+          <li data-md>
+           <p>Run the following substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑦">in parallel</a>:</p>
+           <ol>
+            <li data-md>
+             <p>Let <var>fetchHandlerResponse</var> be the result of <a data-link-type="dfn" href="#create-fetch-event-and-dispatch" id="ref-for-create-fetch-event-and-dispatch">Create Fetch Event and Dispatch</a> with <var>request</var>, <var>registration</var>, <var>useHighResPerformanceTimers</var>, <var>timingInfo</var>, <var>workerRealm</var>, <var>reservedClient</var>, <var>preloadResponse</var>, and <var>raceResponse</var>.</p>
+            <li data-md>
+             <p>If <var>fetchHandlerResponse</var> is not null and not a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error⑧">network error</a>, and <var>raceFetchController</var> is not null, <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-abort" id="ref-for-fetch-controller-abort③">abort</a> <var>raceFetchController</var>.</p>
+            <li data-md>
+             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#queue-enqueue" id="ref-for-queue-enqueue③">Enqueue</a> <var>fetchHandlerResponse</var> to <var>queue</var>.</p>
+           </ol>
+          <li data-md>
+           <p>Wait until <var>queue</var> is not empty.</p>
+          <li data-md>
+           <p>Return the result of <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#queue-dequeue" id="ref-for-queue-dequeue①">dequeue</a> <var>queue</var>.</p>
          </ol>
         <li data-md>
-         <p>Else, resolve <var>preloadResponse</var> with undefined.</p>
+         <p class="assertion">Assert: <var>source</var> is "<code class="idl"><a data-link-type="idl" href="#dom-routersourceenum-fetch-event" id="ref-for-dom-routersourceenum-fetch-event①">fetch-event</a></code>"</p>
        </ol>
-       <p class="note" role="note"><span class="marker">Note:</span> From this point, the <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client④③">service worker client</a> starts to <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use④">use</a> its <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑦">active service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①⑧">containing service worker registration</a>.</p>
       <li data-md>
-       <p>Else if <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request">subresource request</a>, then:</p>
+       <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#navigation-request" id="ref-for-navigation-request①">navigation request</a>, <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-navigation-preload-enabled-flag" id="ref-for-service-worker-registration-navigation-preload-enabled-flag③">navigation preload enabled flag</a> is set, <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑥">method</a> is `<code>GET</code>`, <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker③⑨">active worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle④">set of event types to handle</a> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain④">contains</a> <code>fetch</code>, and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⓪">active worker</a>'s <a data-link-type="dfn" href="#service-worker-all-fetch-listeners-are-empty-flag" id="ref-for-service-worker-all-fetch-listeners-are-empty-flag②">all fetch listeners are empty flag</a> is not set then:</p>
+       <p class="note" role="note"><span class="marker">Note:</span> If the above is true except <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④①">active worker</a>'s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle⑤">set of event types to handle</a> <strong>does not</strong> contain <code>fetch</code>, then the user agent may wish to show a console warning, as the developer’s intent isn’t clear.</p>
        <ol>
         <li data-md>
-         <p>If <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑧">active service worker</a> is non-null, set <var>registration</var> to <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker②⑨">active service worker</a>’s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration①⑨">containing service worker registration</a>.</p>
+         <p>Let <var>preloadRequest</var> be the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-clone" id="ref-for-concept-request-clone">cloning</a> the request <var>request</var>.</p>
         <li data-md>
-         <p>Else, return null.</p>
+         <p>Let <var>preloadRequestHeaders</var> be <var>preloadRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-header-list" id="ref-for-concept-request-header-list①">header list</a>.</p>
+        <li data-md>
+         <p>Let <var>preloadResponseObject</var> be a new <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#response" id="ref-for-response①④">Response</a></code> object associated with a new <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#headers" id="ref-for-headers②">Headers</a></code> object whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-headers-guard" id="ref-for-concept-headers-guard②">guard</a> is "<code>immutable</code>".</p>
+        <li data-md>
+         <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-list-append" id="ref-for-concept-header-list-append">Append</a> to <var>preloadRequestHeaders</var> a new <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header②">header</a> whose <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name②">name</a> is `<code>Service-Worker-Navigation-Preload</code>` and <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-value" id="ref-for-concept-header-value">value</a> is <var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-navigation-preload-header-value" id="ref-for-service-worker-registration-navigation-preload-header-value②">navigation preload header value</a>.</p>
+        <li data-md>
+         <p>Set <var>preloadRequest</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#request-service-workers-mode" id="ref-for-request-service-workers-mode③">service-workers mode</a> to "<code>none</code>".</p>
+        <li data-md>
+         <p>Let <var>preloadFetchController</var> be null.</p>
+        <li data-md>
+         <p>Run the following substeps <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑧">in parallel</a>, but <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#abort-when" id="ref-for-abort-when①">abort when</a> <var>controller</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-state" id="ref-for-fetch-controller-state①">state</a> is "<code>terminated</code>" or "<code>aborted</code>":</p>
+         <ol>
+          <li data-md>
+           <p>Set <var>preloadFetchController</var> to the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①⑤">fetching</a> <var>preloadRequest</var>.</p>
+           <p>To <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#process-response" id="ref-for-process-response③">processResponse</a> for <var>navigationPreloadResponse</var>, run these substeps:</p>
+           <ol>
+            <li data-md>
+             <p>If <var>navigationPreloadResponse</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-type" id="ref-for-concept-response-type④">type</a> is "<code>error</code>", reject <var>preloadResponse</var> with a <code>TypeError</code> and terminate these substeps.</p>
+            <li data-md>
+             <p>Associate <var>preloadResponseObject</var> with <var>navigationPreloadResponse</var>.</p>
+            <li data-md>
+             <p>Resolve <var>preloadResponse</var> with <var>preloadResponseObject</var>.</p>
+           </ol>
+         </ol>
+        <li data-md>
+         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#if-aborted" id="ref-for-if-aborted①">If aborted</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>deserializedError</var> be the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#deserialize-a-serialized-abort-reason" id="ref-for-deserialize-a-serialized-abort-reason">deserialize a serialized abort reason</a> given null and <var>workerRealm</var>.</p>
+          <li data-md>
+           <p><a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-abort" id="ref-for-fetch-controller-abort④">Abort</a> <var>preloadFetchController</var> with <var>deserializedError</var>.</p>
+         </ol>
        </ol>
       <li data-md>
-       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⓪">active worker</a>.</p>
+       <p>Else, resolve <var>preloadResponse</var> with undefined.</p>
+      <li data-md>
+       <p>Return the result of <a data-link-type="dfn" href="#create-fetch-event-and-dispatch" id="ref-for-create-fetch-event-and-dispatch①">Create Fetch Event and Dispatch</a> with <var>request</var>, <var>registration</var>, <var>useHighResPerformanceTimers</var>, <var>timingInfo</var>, <var>workerRealm</var>, <var>reservedClient</var>, <var>preloadResponse</var>, and null.</p>
+     </ol>
+    </section>
+    <section class="algorithm" data-algorithm="Create Fetch Event and Dispatch">
+     <h3 class="heading settled" id="create-fetch-event-and-dispatch-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="create-fetch-event-and-dispatch">Create Fetch Event and Dispatch</dfn></span><a class="self-link" href="#create-fetch-event-and-dispatch-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑧">request</a></p>
+      <dd data-md>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑦">service worker registration</a></p>
+      <dd data-md>
+       <p><var>useHighResPerformanceTimers</var>, a boolean</p>
+      <dd data-md>
+       <p><var>timingInfo</var>, a <a data-link-type="dfn" href="#service-worker-timing-info" id="ref-for-service-worker-timing-info①">service worker timing info</a></p>
+      <dd data-md>
+       <p><var>workerRealm</var>, a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm⑨">relevant realm</a> of the <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①①">global object</a></p>
+      <dd data-md>
+       <p><var>reservedClient</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-reserved-client" id="ref-for-concept-request-reserved-client①">reserved client</a></p>
+      <dd data-md>
+       <p><var>preloadResponse</var>, a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects③⓪">promise</a></p>
+      <dd data-md>
+       <p><var>raceResponse</var>, a <a data-link-type="dfn" href="#dfn-race-response" id="ref-for-dfn-race-response③">race response</a> or null</p>
+      <dt data-md>Output
+      <dd data-md>
+       <p>a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①③">response</a></p>
+     </dl>
+     <ol>
+      <li data-md>
+       <p>Let <var>response</var> be null.</p>
+      <li data-md>
+       <p>Let <var>eventCanceled</var> be false.</p>
+      <li data-md>
+       <p>Let <var>client</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client④">client</a>.</p>
+      <li data-md>
+       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④②">active worker</a>.</p>
+      <li data-md>
+       <p>Let <var>eventHandled</var> be null.</p>
+      <li data-md>
+       <p>Let <var>handleFetchFailed</var> be false.</p>
+      <li data-md>
+       <p>Let <var>respondWithEntered</var> be false.</p>
       <li data-md>
        <p>Let <var>shouldSoftUpdate</var> be true if any of the following are true, and false otherwise:</p>
        <ul>
         <li data-md>
-         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request①">non-subresource request</a>.</p>
+         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request②">non-subresource request</a>.</p>
         <li data-md>
-         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request①">subresource request</a> and <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale③">stale</a>.</p>
+         <p><var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request②">subresource request</a> and <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale④">stale</a>.</p>
        </ul>
       <li data-md>
        <p>If the result of running the <a data-link-type="dfn" href="#should-skip-event" id="ref-for-should-skip-event③">Should Skip Event</a> algorithm with "fetch" and <var>activeWorker</var> is true, then:</p>
        <ol>
         <li data-md>
-         <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③④">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update①">Soft Update</a> algorithm with <var>registration</var>.</p>
+         <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑨">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update④">Soft Update</a> algorithm with <var>registration</var>.</p>
         <li data-md>
          <p>Return null.</p>
        </ol>
@@ -5080,33 +5367,35 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
        <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#service-worker-all-fetch-listeners-are-empty-flag" id="ref-for-service-worker-all-fetch-listeners-are-empty-flag③">all fetch listeners are empty flag</a> is set:</p>
        <ol>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑤">In parallel</a>:</p>
+         <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④⓪">In parallel</a>:</p>
          <ol>
           <li data-md>
-           <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state⑨">state</a> is "activating", then wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⓪">state</a> to become "activated".</p>
+           <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⓪">state</a> is "activating", then wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①①">state</a> to become "activated".</p>
           <li data-md>
-           <p>Run the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑥">Run Service Worker</a> algorithm with <var>activeWorker</var>.</p>
+           <p>Run the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑦">Run Service Worker</a> algorithm with <var>activeWorker</var>.</p>
           <li data-md>
-           <p>If <var>shouldSoftUpdate</var> is true, then run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update②">Soft Update</a> algorithm with <var>registration</var>.</p>
+           <p>If <var>shouldSoftUpdate</var> is true, then run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑤">Soft Update</a> algorithm with <var>registration</var>.</p>
          </ol>
         <li data-md>
          <p>Return null.</p>
        </ol>
       <li data-md>
-       <p>If <var>useHighResPerformanceTimers</var> is true, then set <var>useHighResPerformanceTimers</var> to <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑥">global object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-cross-origin-isolated-capability" id="ref-for-concept-workerglobalscope-cross-origin-isolated-capability①">cross-origin isolated capability</a>.</p>
+       <p>If <var>useHighResPerformanceTimers</var> is true, then set <var>useHighResPerformanceTimers</var> to <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①②">global object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/workers.html#concept-workerglobalscope-cross-origin-isolated-capability" id="ref-for-concept-workerglobalscope-cross-origin-isolated-capability①">cross-origin isolated capability</a>.</p>
       <li data-md>
        <p>Let <var>timingInfo</var>’s <a data-link-type="dfn" href="#service-worker-timing-info-start-time" id="ref-for-service-worker-timing-info-start-time">start time</a> be the <a data-link-type="dfn" href="https://w3c.github.io/hr-time/#dfn-coarsened-shared-current-time" id="ref-for-dfn-coarsened-shared-current-time">coarsened shared current time</a> given <var>useHighResPerformanceTimers</var>.</p>
       <li data-md>
-       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①①">state</a> is "<code>activating</code>", wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①②">state</a> to become "<code>activated</code>".</p>
+       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①②">state</a> is "<code>activating</code>", wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①③">state</a> to become "<code>activated</code>".</p>
       <li data-md>
-       <p>If the result of running the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑦">Run Service Worker</a> algorithm with <var>activeWorker</var> is <em>failure</em>, then set <var>handleFetchFailed</var> to true.</p>
+       <p>If the result of running the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑧">Run Service Worker</a> algorithm with <var>activeWorker</var> is <em>failure</em>, then set <var>handleFetchFailed</var> to true.</p>
       <li data-md>
        <p>Else:</p>
        <ol>
         <li data-md>
-         <p>Set <var>workerRealm</var> to the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm⑨">relevant realm</a> of the <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑦">global object</a>.</p>
+         <p>Set <var>workerRealm</var> to the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm①⓪">relevant realm</a> of the <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①③">global object</a>.</p>
         <li data-md>
          <p>Set <var>eventHandled</var> to <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#a-new-promise" id="ref-for-a-new-promise②⓪">a new promise</a> in <var>workerRealm</var>.</p>
+        <li data-md>
+         <p>If <var>raceResponse</var> is not null, <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-set" id="ref-for-map-set③">set</a> <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①④">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-race-response-map" id="ref-for-serviceworkerglobalscope-race-response-map">race response map</a>[<var>request</var>] to <var>raceResponse</var>.</p>
         <li data-md>
          <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③③">Queue a task</a> <var>task</var> to run the following substeps:</p>
          <ol>
@@ -5117,7 +5406,7 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
           <li data-md>
            <p>Let <var>requestObject</var> be the result of <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#request-create" id="ref-for-request-create">creating</a> a <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#request" id="ref-for-request①④">Request</a></code> object, given <var>request</var>, a new <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#headers" id="ref-for-headers③">Headers</a></code> object’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-headers-guard" id="ref-for-concept-headers-guard③">guard</a> which is "<code>immutable</code>", <var>controller</var>’s <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#abortcontroller-signal" id="ref-for-abortcontroller-signal">signal</a>, and <var>workerRealm</var>.</p>
           <li data-md>
-           <p>Initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#dom-event-type" id="ref-for-dom-event-type②">type</a></code> attribute to <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event⑥">fetch</a></code>.</p>
+           <p>Initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#dom-event-type" id="ref-for-dom-event-type②">type</a></code> attribute to <code class="idl"><a class="idl-code" data-link-type="event" href="#service-worker-global-scope-fetch-event" id="ref-for-service-worker-global-scope-fetch-event⑦">fetch</a></code>.</p>
           <li data-md>
            <p>Initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="https://dom.spec.whatwg.org/#dom-event-cancelable" id="ref-for-dom-event-cancelable">cancelable</a></code> attribute to true.</p>
           <li data-md>
@@ -5127,7 +5416,7 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
           <li data-md>
            <p>Initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-clientid" id="ref-for-dom-fetchevent-clientid②">clientId</a></code> attribute to <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-id" id="ref-for-concept-environment-id③">id</a>.</p>
           <li data-md>
-           <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request②">non-subresource request</a> and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination⑤">destination</a> is not <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#dom-requestdestination-report" id="ref-for-dom-requestdestination-report①">"report"</a></code>, initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid②">resultingClientId</a></code> attribute to <var>reservedClient</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-id" id="ref-for-concept-environment-id④">id</a>, and to the empty string otherwise.</p>
+           <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request③">non-subresource request</a> and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination⑤">destination</a> is not <code class="idl"><a data-link-type="idl" href="https://fetch.spec.whatwg.org/#dom-requestdestination-report" id="ref-for-dom-requestdestination-report①">"report"</a></code>, initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-resultingclientid" id="ref-for-dom-fetchevent-resultingclientid②">resultingClientId</a></code> attribute to <var>reservedClient</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-id" id="ref-for-concept-environment-id④">id</a>, and to the empty string otherwise.</p>
           <li data-md>
            <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#navigation-request" id="ref-for-navigation-request②">navigation request</a>, initialize <var>e</var>’s <code class="idl"><a data-link-type="idl" href="#dom-fetchevent-replacesclientid" id="ref-for-dom-fetchevent-replacesclientid②">replacesClientId</a></code> attribute to <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-replaces-client-id" id="ref-for-concept-request-replaces-client-id">replaces client id</a>, and to the empty string otherwise.</p>
           <li data-md>
@@ -5135,7 +5424,7 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
           <li data-md>
            <p>Let <var>timingInfo</var>’s <a data-link-type="dfn" href="#service-worker-timing-info-fetch-event-dispatch-time" id="ref-for-service-worker-timing-info-fetch-event-dispatch-time">fetch event dispatch time</a> to the <a data-link-type="dfn" href="https://w3c.github.io/hr-time/#dfn-coarsened-shared-current-time" id="ref-for-dfn-coarsened-shared-current-time①">coarsened shared current time</a> given <var>useHighResPerformanceTimers</var>.</p>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑥">Dispatch</a> <var>e</var> at <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑧">global object</a>.</p>
+           <p><a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑥">Dispatch</a> <var>e</var> at <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⑤">global object</a>.</p>
           <li data-md>
            <p>Invoke <a data-link-type="dfn" href="#update-service-worker-extended-events-set" id="ref-for-update-service-worker-extended-events-set①">Update Service Worker Extended Events Set</a> with <var>activeWorker</var> and <var>e</var>.</p>
           <li data-md>
@@ -5163,7 +5452,7 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
           <li data-md>
            <p>If <var>e</var>’s <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#canceled-flag" id="ref-for-canceled-flag">canceled flag</a> is set, set <var>eventCanceled</var> to true.</p>
           <li data-md>
-           <p>If <var>controller</var> <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-state" id="ref-for-fetch-controller-state①">state</a> is "<code>terminated</code>" or "<code>aborted</code>", then:</p>
+           <p>If <var>controller</var> <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#fetch-controller-state" id="ref-for-fetch-controller-state②">state</a> is "<code>terminated</code>" or "<code>aborted</code>", then:</p>
            <ol>
             <li data-md>
              <p>Let <var>deserializedError</var> be a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#aborterror" id="ref-for-aborterror①">AbortError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②①">DOMException</a></code>.</p>
@@ -5179,7 +5468,9 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
       <li data-md>
        <p>Wait for <var>task</var> to have executed or for <var>handleFetchFailed</var> to be true.</p>
       <li data-md>
-       <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑥">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update③">Soft Update</a> algorithm with <var>registration</var>.</p>
+       <p>If <var>shouldSoftUpdate</var> is true, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④①">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑥">Soft Update</a> algorithm with <var>registration</var>.</p>
+      <li data-md>
+       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⑥">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-race-response-map" id="ref-for-serviceworkerglobalscope-race-response-map①">race response map</a>[<var>request</var>] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists⑨">exists</a>, <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove⑤">remove</a> <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⑦">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-race-response-map" id="ref-for-serviceworkerglobalscope-race-response-map②">race response map</a>[<var>request</var>].</p>
       <li data-md>
        <p>If <var>respondWithEntered</var> is false, then:</p>
        <ol>
@@ -5189,10 +5480,18 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
           <li data-md>
            <p>If <var>eventHandled</var> is not null, then <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#reject" id="ref-for-reject③">reject</a> <var>eventHandled</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#networkerror" id="ref-for-networkerror">NetworkError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②③">DOMException</a></code> in <var>workerRealm</var>.</p>
           <li data-md>
-           <p>Return a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error⑦">network error</a>.</p>
+           <p>Return a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error⑨">network error</a>.</p>
          </ol>
         <li data-md>
          <p>If <var>eventHandled</var> is not null, then <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#resolve" id="ref-for-resolve">resolve</a> <var>eventHandled</var>.</p>
+        <li data-md>
+         <p>If <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value④">value</a> is not null, then:</p>
+         <ol>
+          <li data-md>
+           <p>Wait until <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value⑤">value</a> is not "<code>pending</code>".</p>
+          <li data-md>
+           <p>If <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value⑥">value</a> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①④">response</a>, return <var>raceResponse</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value⑦">value</a>.</p>
+         </ol>
         <li data-md>
          <p>Return null.</p>
        </ol>
@@ -5202,7 +5501,7 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
         <li data-md>
          <p>If <var>eventHandled</var> is not null, then <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#reject" id="ref-for-reject④">reject</a> <var>eventHandled</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#networkerror" id="ref-for-networkerror①">NetworkError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②④">DOMException</a></code> in <var>workerRealm</var>.</p>
         <li data-md>
-         <p>Return a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error⑧">network error</a>.</p>
+         <p>Return a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-network-error" id="ref-for-concept-network-error①⓪">network error</a>.</p>
        </ol>
       <li data-md>
        <p>If <var>eventHandled</var> is not null, then <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#resolve" id="ref-for-resolve①">resolve</a> <var>eventHandled</var>.</p>
@@ -5210,6 +5509,189 @@ <h3 class="heading settled" id="on-fetch-request-algorithm"><span class="content
        <p>Return <var>response</var>.</p>
      </ol>
     </section>
+    <section class="algorithm" data-algorithm="Parse URL Pattern">
+     <h3 class="heading settled" id="parse-urlpattern-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="parse-url-pattern">Parse URL Pattern</dfn></span><a class="self-link" href="#parse-urlpattern-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>rawPattern</var>, a <code class="idl"><a data-link-type="idl" href="https://urlpattern.spec.whatwg.org/#typedefdef-urlpatterncompatible" id="ref-for-typedefdef-urlpatterncompatible①">URLPatternCompatible</a></code></p>
+      <dd data-md>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪①">service worker</a></p>
+      <dt data-md>Output
+      <dd data-md>
+       <p><code class="idl"><a data-link-type="idl" href="https://urlpattern.spec.whatwg.org/#urlpattern" id="ref-for-urlpattern">URLPattern</a></code></p>
+     </dl>
+     <ol>
+      <li data-md>
+       <p>Let <var>baseURL</var> be <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url①⓪">script url</a>.</p>
+      <li data-md>
+       <p>Return the result of <a data-link-type="dfn" href="https://urlpattern.spec.whatwg.org/#build-a-urlpattern-from-a-web-idl-value" id="ref-for-build-a-urlpattern-from-a-web-idl-value">building a URLPattern from a Web IDL value</a> <var>rawPattern</var> given <var>baseURL</var> and <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⑧">global object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm①①">relevant realm</a>.</p>
+     </ol>
+     <p class="note" role="note"><span class="marker">Note:</span> Since the <a data-link-type="dfn" href="https://urlpattern.spec.whatwg.org/#build-a-urlpattern-from-a-web-idl-value" id="ref-for-build-a-urlpattern-from-a-web-idl-value①">building a URLPattern from a Web IDL value</a> algorithm actually do not depend on the realm, it is  fine to call the algorithm here even if the <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⑨">global object</a> may not be ready.</p>
+    </section>
+    <section class="algorithm" data-algorithm="Verify Router Condition">
+     <h3 class="heading settled" id="verify-router-rule-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="verify-router-condition">Verify Router Condition</dfn></span><a class="self-link" href="#verify-router-rule-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>condition</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-routercondition" id="ref-for-dictdef-routercondition②">RouterCondition</a></code></p>
+      <dd data-md>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪②">service worker</a></p>
+      <dt data-md>Output
+      <dd data-md>
+       <p>a boolean</p>
+     </dl>
+     <ol>
+      <li data-md>
+       <p>Let <var>hasCondition</var> be false.</p>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-urlpattern" id="ref-for-dom-routercondition-urlpattern">urlPattern</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⓪">exists</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>Let <var>rawPattern</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-urlpattern" id="ref-for-dom-routercondition-urlpattern①">urlPattern</a></code>"].</p>
+        <li data-md>
+         <p>Let <var>pattern</var> be the result of running the <a data-link-type="dfn" href="#parse-url-pattern" id="ref-for-parse-url-pattern">Parse URL Pattern</a> algorithm passing <var>rawPattern</var> and <var>serviceWorker</var>. If this throws an exception, catch it and return false.</p>
+        <li data-md>
+         <p>If <var>pattern</var> <a data-link-type="dfn" href="https://urlpattern.spec.whatwg.org/#urlpattern-has-regexp-groups" id="ref-for-urlpattern-has-regexp-groups">has regexp groups</a>, then return false.</p>
+         <p class="note" role="note"><span class="marker">Note:</span> Since running a user-defined regular expression has a security concern, it is prohibited.</p>
+        <li data-md>
+         <p>Set <var>hasCondition</var> to true.</p>
+       </ol>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmethod" id="ref-for-dom-routercondition-requestmethod">requestMethod</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①①">exists</a>, set <var>hasCondition</var> to true.</p>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmode" id="ref-for-dom-routercondition-requestmode">requestMode</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①②">exists</a>, set <var>hasCondition</var> to true.</p>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestdestination" id="ref-for-dom-routercondition-requestdestination">requestDestination</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①③">exists</a>, set <var>hasCondition</var> to true.</p>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-runningstatus" id="ref-for-dom-routercondition-runningstatus">runningStatus</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①④">exists</a>, set <var>hasCondition</var> to true.</p>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-or" id="ref-for-dom-routercondition-or">_or</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⑤">exists</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>If <var>hasCondition</var> is true, return false.</p>
+         <p class="note" role="note"><span class="marker">Note:</span> For ease of understanding the router rule, the "or" condition is mutually exclusive with other conditions.</p>
+        <li data-md>
+         <p>Let <var>orConditions</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-or" id="ref-for-dom-routercondition-or①">_or</a></code>"].</p>
+        <li data-md>
+         <p>For each <var>orCondition</var> of <var>orConditions</var>:</p>
+         <ol>
+          <li data-md>
+           <p>If running the <a data-link-type="dfn" href="#verify-router-condition" id="ref-for-verify-router-condition①">Verify Router Condition</a> algorithm with <var>orCondition</var> and <var>serviceWorker</var> returns false, return false.</p>
+         </ol>
+        <li data-md>
+         <p>Set <var>hasCondition</var> to true.</p>
+       </ol>
+      <li data-md>
+       <p>Return <var>hasCondition</var>.</p>
+     </ol>
+    </section>
+    <section class="algorithm" data-algorithm="Match Router Condition">
+     <h3 class="heading settled" id="match-router-condition-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="match-router-condition">Match Router Condition</dfn></span><a class="self-link" href="#match-router-condition-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>condition</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-routercondition" id="ref-for-dictdef-routercondition③">RouterCondition</a></code></p>
+      <dd data-md>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪③">service worker</a></p>
+      <dd data-md>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑨">request</a></p>
+      <dt data-md>Output
+      <dd data-md>
+       <p>a boolean</p>
+     </dl>
+     <p class="note" role="note"><span class="marker">Note:</span> if there are multiple conditions (e.g. <code>urlPattern</code>, <code>runningStatus</code>, and <code>requestMethod</code> are set), all conditions need to match for true to be returned.</p>
+     <ol>
+      <li data-md>
+       <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-or" id="ref-for-dom-routercondition-or②">or</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⑥">exists</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>Let <var>orConditions</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-or" id="ref-for-dom-routercondition-or③">or</a></code>"].</p>
+        <li data-md>
+         <p>For each <var>orCondition</var> of <var>orConditions</var>:</p>
+         <ol>
+          <li data-md>
+           <p>If running the <a data-link-type="dfn" href="#match-router-condition" id="ref-for-match-router-condition">Match Router Condition</a> algorithm with <var>orCondition</var>, <var>serviceWorker</var> and <var>request</var> returns true, then return true.</p>
+         </ol>
+        <li data-md>
+         <p>Return false.</p>
+       </ol>
+      <li data-md>
+       <p>Else:</p>
+       <p class="note" role="note"><span class="marker">Note:</span> The <a data-link-type="dfn" href="#verify-router-condition" id="ref-for-verify-router-condition②">Verify Router Condition</a> algorithm guarantees that <code class="idl"><a data-link-type="idl" href="#dom-routercondition-or" id="ref-for-dom-routercondition-or④">or</a></code> and other conditions are mutual exclusive.</p>
+       <ol>
+        <li data-md>
+         <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-urlpattern" id="ref-for-dom-routercondition-urlpattern②">urlPattern</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⑦">exists</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>rawPattern</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-urlpattern" id="ref-for-dom-routercondition-urlpattern③">urlPattern</a></code>"].</p>
+          <li data-md>
+           <p>Let <var>pattern</var> be the result of running the <a data-link-type="dfn" href="#parse-url-pattern" id="ref-for-parse-url-pattern①">Parse URL Pattern</a> algorithm passing <var>rawPattern</var> and <var>serviceWorker</var>.</p>
+          <li data-md>
+           <p>If running <a data-link-type="dfn" href="https://urlpattern.spec.whatwg.org/#urlpattern-match" id="ref-for-urlpattern-match">match</a> with <var>pattern</var> and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①⓪">URL</a> returns null, return false.</p>
+         </ol>
+        <li data-md>
+         <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmethod" id="ref-for-dom-routercondition-requestmethod①">requestMethod</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⑧">exists</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>method</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmethod" id="ref-for-dom-routercondition-requestmethod②">requestMethod</a></code>"].</p>
+          <li data-md>
+           <p>If <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑦">method</a> is not <var>method</var>, return false.</p>
+         </ol>
+        <li data-md>
+         <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmode" id="ref-for-dom-routercondition-requestmode①">requestMode</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists①⑨">exists</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>mode</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestmode" id="ref-for-dom-routercondition-requestmode②">requestMode</a></code>"].</p>
+          <li data-md>
+           <p>If <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-mode" id="ref-for-concept-request-mode">mode</a> is not <var>mode</var>, return false.</p>
+         </ol>
+        <li data-md>
+         <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestdestination" id="ref-for-dom-routercondition-requestdestination①">requestDestination</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists②⓪">exists</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>destination</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-requestdestination" id="ref-for-dom-routercondition-requestdestination②">requestDestination</a></code>"].</p>
+          <li data-md>
+           <p>If <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-destination" id="ref-for-concept-request-destination⑥">destination</a> is not <var>destination</var>, return false.</p>
+         </ol>
+        <li data-md>
+         <p>If <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-runningstatus" id="ref-for-dom-routercondition-runningstatus①">runningStatus</a></code>"] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists②①">exists</a>, then:</p>
+         <ol>
+          <li data-md>
+           <p>Let <var>runningStatus</var> be <var>condition</var>["<code class="idl"><a data-link-type="idl" href="#dom-routercondition-runningstatus" id="ref-for-dom-routercondition-runningstatus②">runningStatus</a></code>"].</p>
+          <li data-md>
+           <p>If <var>runningStatus</var> is <code class="idl"><a data-link-type="idl" href="#dom-runningstatus-running" id="ref-for-dom-runningstatus-running">"running"</a></code>, and <var>serviceWorker</var> is not <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running④">running</a>, return false.</p>
+          <li data-md>
+           <p>If <var>runningStatus</var> is <code class="idl"><a data-link-type="idl" href="#dom-runningstatus-not-running" id="ref-for-dom-runningstatus-not-running">"not-running"</a></code>, and <var>serviceWorker</var> is <a data-link-type="dfn" href="#service-worker-running" id="ref-for-service-worker-running⑤">running</a>, return false.</p>
+         </ol>
+        <li data-md>
+         <p>Return true.</p>
+       </ol>
+     </ol>
+    </section>
+    <section class="algorithm" data-algorithm="Get Router Source">
+     <h3 class="heading settled" id="get-router-source-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="get-router-source">Get Router Source</dfn></span><a class="self-link" href="#get-router-source-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪④">service worker</a></p>
+      <dd data-md>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request①⓪">request</a></p>
+      <dt data-md>Output
+      <dd data-md>
+       <p><code class="idl"><a data-link-type="idl" href="#typedefdef-routersource" id="ref-for-typedefdef-routersource①">RouterSource</a></code> or null</p>
+     </dl>
+     <ol>
+      <li data-md>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑦">For each</a> <var>rule</var> of <var>serviceWorker</var>’s <a data-link-type="dfn" href="#service-worker-list-of-router-rules" id="ref-for-service-worker-list-of-router-rules③">list of router rules</a>:</p>
+       <ol>
+        <li data-md>
+         <p>If running the <a data-link-type="dfn" href="#match-router-condition" id="ref-for-match-router-condition①">Match Router Condition</a> algorithm with <var>rule</var>["<code class="idl"><a data-link-type="idl" href="#dom-routerrule-condition" id="ref-for-dom-routerrule-condition①">condition</a></code>"], <var>serviceWorker</var> and <var>request</var> returns true, then return <var>rule</var>["<code class="idl"><a data-link-type="idl" href="#dom-routerrule-source" id="ref-for-dom-routerrule-source①">source</a></code>"].</p>
+       </ol>
+      <li data-md>
+       <p>Return null.</p>
+     </ol>
+    </section>
     <section class="algorithm" data-algorithm="Should Skip Event">
      <h3 class="heading settled" id="should-skip-event-algorithm"><span class="content"><dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="should-skip-event">Should Skip Event</dfn></span><a class="self-link" href="#should-skip-event-algorithm"></a></h3>
      <dl>
@@ -5217,7 +5699,7 @@ <h3 class="heading settled" id="should-skip-event-algorithm"><span class="conten
       <dd data-md>
        <p><var>eventName</var>, a string</p>
       <dd data-md>
-       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker⑨⑨">service worker</a></p>
+       <p><var>serviceWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑤">service worker</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>a boolean</p>
@@ -5225,7 +5707,7 @@ <h3 class="heading settled" id="should-skip-event-algorithm"><span class="conten
      <p class="note" role="note"><span class="marker">Note:</span> To avoid unnecessary delays, this specification permits skipping event dispatch when no event listeners for the event have been deterministically added in the service worker’s global during the very first script execution.</p>
      <ol>
       <li data-md>
-       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle⑤">set of event types to handle</a> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain③">contain</a> <var>eventName</var>, then the user agent <em>may</em> return true.</p>
+       <p>If <var>serviceWorker</var>’s <a data-link-type="dfn" href="#dfn-set-of-event-types-to-handle" id="ref-for-dfn-set-of-event-types-to-handle⑥">set of event types to handle</a> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain⑤">contain</a> <var>eventName</var>, then the user agent <em>may</em> return true.</p>
       <li data-md>
        <p>Return false.</p>
      </ol>
@@ -5239,35 +5721,35 @@ <h3 class="heading settled" id="fire-functional-event-algorithm"><span class="co
       <dd data-md>
        <p><var>eventConstructor</var>, an event constructor that extends <code class="idl"><a data-link-type="idl" href="#extendableevent" id="ref-for-extendableevent①⑧">ExtendableEvent</a></code></p>
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑦">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑧">service worker registration</a></p>
       <dd data-md>
        <p><var>initialization</var>, optional property initialization for <var>event</var>, constructed from <var>eventConstructor</var></p>
       <dd data-md>
-       <p><var>postDispatchSteps</var>, optional steps to run on the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④①">active worker</a>'s event loop, with <var>dispatchedEvent</var> set to the instance of <var>eventConstructor</var> that was <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑦">dispatched</a>.</p>
+       <p><var>postDispatchSteps</var>, optional steps to run on the <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④③">active worker</a>'s event loop, with <var>dispatchedEvent</var> set to the instance of <var>eventConstructor</var> that was <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑦">dispatched</a>.</p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
      </dl>
      <ol>
       <li data-md>
-       <p class="assertion">Assert: <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④②">active worker</a> is not null.</p>
+       <p class="assertion">Assert: <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④④">active worker</a> is not null.</p>
       <li data-md>
-       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④③">active worker</a>.</p>
+       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑤">active worker</a>.</p>
       <li data-md>
        <p>If the result of running <a data-link-type="dfn" href="#should-skip-event" id="ref-for-should-skip-event④">Should Skip Event</a> with <var>eventName</var> and <var>activeWorker</var> is true, then:</p>
        <ol>
         <li data-md>
-         <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale④">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑦">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update④">Soft Update</a> algorithm with <var>registration</var>.</p>
+         <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale⑤">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④②">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑦">Soft Update</a> algorithm with <var>registration</var>.</p>
         <li data-md>
          <p>Return.</p>
        </ol>
       <li data-md>
-       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①③">state</a> is "<code>activating</code>", wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①④">state</a> to become "<code>activated</code>".</p>
+       <p>If <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①④">state</a> is "<code>activating</code>", wait for <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⑤">state</a> to become "<code>activated</code>".</p>
       <li data-md>
-       <p>If the result of running the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑧">Run Service Worker</a> algorithm with <var>activeWorker</var> is <em>failure</em>, then:</p>
+       <p>If the result of running the <a data-link-type="dfn" href="#run-service-worker" id="ref-for-run-service-worker⑨">Run Service Worker</a> algorithm with <var>activeWorker</var> is <em>failure</em>, then:</p>
        <ol>
         <li data-md>
-         <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale⑤">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑧">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑤">Soft Update</a> algorithm with <var>registration</var>.</p>
+         <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale⑥">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④③">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑧">Soft Update</a> algorithm with <var>registration</var>.</p>
         <li data-md>
          <p>Return.</p>
        </ol>
@@ -5275,11 +5757,11 @@ <h3 class="heading settled" id="fire-functional-event-algorithm"><span class="co
        <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑤">Queue a task</a> <var>task</var> to run these substeps:</p>
        <ol>
         <li data-md>
-         <p>Let <var>event</var> be the result of <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-create" id="ref-for-concept-event-create⑤">creating an event</a> with <var>eventConstructor</var> and the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm①⓪">relevant realm</a> of <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object⑨">global object</a>.</p>
+         <p>Let <var>event</var> be the result of <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-create" id="ref-for-concept-event-create⑤">creating an event</a> with <var>eventConstructor</var> and the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-realm" id="ref-for-concept-relevant-realm①②">relevant realm</a> of <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object②⓪">global object</a>.</p>
         <li data-md>
          <p>If <var>initialization</var> is not null, then initialize <var>event</var> with <var>initialization</var>.</p>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑧">Dispatch</a> <var>event</var> on <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object①⓪">global object</a>.</p>
+         <p><a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-dispatch" id="ref-for-concept-event-dispatch⑧">Dispatch</a> <var>event</var> on <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object②①">global object</a>.</p>
         <li data-md>
          <p>Invoke <a data-link-type="dfn" href="#update-service-worker-extended-events-set" id="ref-for-update-service-worker-extended-events-set②">Update Service Worker Extended Events Set</a> with <var>activeWorker</var> and <var>event</var>.</p>
         <li data-md>
@@ -5289,7 +5771,7 @@ <h3 class="heading settled" id="fire-functional-event-algorithm"><span class="co
       <li data-md>
        <p>Wait for <var>task</var> to have executed or been discarded.</p>
       <li data-md>
-       <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale⑥">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel③⑨">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑥">Soft Update</a> algorithm with <var>registration</var>.</p>
+       <p>If <var>registration</var> is <a data-link-type="dfn" href="#service-worker-registration-stale" id="ref-for-service-worker-registration-stale⑦">stale</a>, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④④">in parallel</a> run the <a data-link-type="dfn" href="#soft-update" id="ref-for-soft-update⑨">Soft Update</a> algorithm with <var>registration</var>.</p>
      </ol>
      <div class="example" id="example-cfaebd87">
       <a class="self-link" href="#example-cfaebd87"></a> To fire an "<code>amazingthing</code>" event (which is of type <code>AmazingThingEvent</code>) on a particular <var>serviceWorkerRegistration</var>, and initialize the event object’s properties, the prose would be: 
@@ -5332,7 +5814,7 @@ <h3 class="heading settled" id="on-client-unload-algorithm"><span class="content
       <li data-md>
        <p>Run the following steps atomically.</p>
       <li data-md>
-       <p>Let <var>registration</var> be the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑧">service worker registration</a> <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use⑤">used</a> by <var>client</var>.</p>
+       <p>Let <var>registration</var> be the <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑨">service worker registration</a> <a data-link-type="dfn" href="#dfn-use" id="ref-for-dfn-use⑤">used</a> by <var>client</var>.</p>
       <li data-md>
        <p>If <var>registration</var> is null, abort these steps.</p>
       <li data-md>
@@ -5355,18 +5837,18 @@ <h3 class="heading settled" id="on-user-agent-shutdown-algorithm"><span class="c
      </dl>
      <ol>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑦">For each</a> <var>registration</var> of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑦">registration map</a>'s <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values③">values</a>:</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑧">For each</a> <var>registration</var> of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑦">registration map</a>'s <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-values" id="ref-for-map-getting-the-values④">values</a>:</p>
        <ol>
         <li data-md>
          <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker①④">installing worker</a> is not null, then:</p>
          <ol>
           <li data-md>
-           <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①③">waiting worker</a> is null and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④④">active worker</a> is null, invoke <a data-link-type="dfn" href="#clear-registration" id="ref-for-clear-registration">Clear Registration</a> with <var>registration</var> and continue to the next iteration of the loop.</p>
+           <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①③">waiting worker</a> is null and <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑥">active worker</a> is null, invoke <a data-link-type="dfn" href="#clear-registration" id="ref-for-clear-registration">Clear Registration</a> with <var>registration</var> and continue to the next iteration of the loop.</p>
           <li data-md>
            <p>Else, set <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker①⑤">installing worker</a> to null.</p>
          </ol>
         <li data-md>
-         <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①④">waiting worker</a> is not null, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④⓪">in parallel</a>:</p>
+         <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①④">waiting worker</a> is not null, then <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/infrastructure.html#in-parallel" id="ref-for-in-parallel④⑤">in parallel</a>:</p>
          <ol>
           <li data-md>
            <p>Invoke <a data-link-type="dfn" href="#activate" id="ref-for-activate⑥">Activate</a> with <var>registration</var>.</p>
@@ -5379,7 +5861,7 @@ <h3 class="heading settled" id="update-service-worker-extended-events-set-algori
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⓪">service worker</a></p>
+       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑥">service worker</a></p>
       <dd data-md>
        <p><var>event</var>, an <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event" id="ref-for-concept-event⑦">event</a></p>
       <dt data-md>Output
@@ -5411,7 +5893,7 @@ <h3 class="heading settled" id="unregister-algorithm"><span class="content"><dfn
      </dl>
      <ol>
       <li data-md>
-       <p>If the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑦">origin</a> of <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-scope-url" id="ref-for-dfn-job-scope-url⑧">scope url</a> is not <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-client" id="ref-for-dfn-job-client②⓪">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑧">origin</a>, then:</p>
+       <p>If the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑧">origin</a> of <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-scope-url" id="ref-for-dfn-job-scope-url⑧">scope url</a> is not <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-client" id="ref-for-dfn-job-client②⓪">client</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑨">origin</a>, then:</p>
        <ol>
         <li data-md>
          <p>Invoke <a data-link-type="dfn" href="#reject-job-promise" id="ref-for-reject-job-promise①⓪">Reject Job Promise</a> with <var>job</var> and "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#securityerror" id="ref-for-securityerror⑦">SecurityError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑤">DOMException</a></code>.</p>
@@ -5429,7 +5911,7 @@ <h3 class="heading settled" id="unregister-algorithm"><span class="content"><dfn
          <p>Invoke <a data-link-type="dfn" href="#finish-job" id="ref-for-finish-job①②">Finish Job</a> with <var>job</var> and abort these steps.</p>
        </ol>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove⑤">Remove</a> <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑧">registration map</a>[(<var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①③">storage key</a>, <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-scope-url" id="ref-for-dfn-job-scope-url①⓪">scope url</a>)].</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove⑥">Remove</a> <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑧">registration map</a>[(<var>registration</var>’s <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①④">storage key</a>, <var>job</var>’s <a data-link-type="dfn" href="#dfn-job-scope-url" id="ref-for-dfn-job-scope-url①⓪">scope url</a>)].</p>
       <li data-md>
        <p>Invoke <a data-link-type="dfn" href="#resolve-job-promise" id="ref-for-resolve-job-promise④">Resolve Job Promise</a> with <var>job</var> and true.</p>
       <li data-md>
@@ -5451,7 +5933,7 @@ <h3 class="heading settled" id="set-registration-algorithm"><span class="content
        <p><var>updateViaCache</var>, an <a data-link-type="dfn" href="#dfn-update-via-cache" id="ref-for-dfn-update-via-cache⑧">update via cache mode</a></p>
       <dt data-md>Output
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑤⑨">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⓪">service worker registration</a></p>
      </dl>
      <ol>
       <li data-md>
@@ -5459,9 +5941,9 @@ <h3 class="heading settled" id="set-registration-algorithm"><span class="content
       <li data-md>
        <p>Let <var>scopeString</var> be <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer①③">serialized</a> <var>scope</var> with the <em>exclude fragment flag</em> set.</p>
       <li data-md>
-       <p>Let <var>registration</var> be a new <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⓪">service worker registration</a> whose <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①④">storage key</a> is set to <var>storage key</var>, <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①⑧">scope url</a> is set to <var>scope</var>, and <a data-link-type="dfn" href="#dfn-update-via-cache" id="ref-for-dfn-update-via-cache⑨">update via cache mode</a> is set to <var>updateViaCache</var>.</p>
+       <p>Let <var>registration</var> be a new <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥①">service worker registration</a> whose <a data-link-type="dfn" href="#service-worker-registration-storage-key" id="ref-for-service-worker-registration-storage-key①⑤">storage key</a> is set to <var>storage key</var>, <a data-link-type="dfn" href="#dfn-scope-url" id="ref-for-dfn-scope-url①⑧">scope url</a> is set to <var>scope</var>, and <a data-link-type="dfn" href="#dfn-update-via-cache" id="ref-for-dfn-update-via-cache⑨">update via cache mode</a> is set to <var>updateViaCache</var>.</p>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-set" id="ref-for-map-set③">Set</a> <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑨">registration map</a>[(<var>storage key</var>, <var>scopeString</var>)] to <var>registration</var>.</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-set" id="ref-for-map-set④">Set</a> <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map⑨">registration map</a>[(<var>storage key</var>, <var>scopeString</var>)] to <var>registration</var>.</p>
       <li data-md>
        <p>Return <var>registration</var>.</p>
      </ol>
@@ -5471,7 +5953,7 @@ <h3 class="heading settled" id="clear-registration-algorithm"><span class="conte
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥①">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥②">service worker registration</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
@@ -5500,12 +5982,12 @@ <h3 class="heading settled" id="clear-registration-algorithm"><span class="conte
          <p>Run the <a data-link-type="dfn" href="#update-registration-state" id="ref-for-update-registration-state⑦">Update Registration State</a> algorithm passing <var>registration</var>, "<code>waiting</code>" and null as the arguments.</p>
        </ol>
       <li data-md>
-       <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑤">active worker</a> is not null, then:</p>
+       <p>If <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑦">active worker</a> is not null, then:</p>
        <ol>
         <li data-md>
-         <p><a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker⑨">Terminate</a> <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑥">active worker</a>.</p>
+         <p><a data-link-type="dfn" href="#terminate-service-worker" id="ref-for-terminate-service-worker⑨">Terminate</a> <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑧">active worker</a>.</p>
         <li data-md>
-         <p>Run the <a data-link-type="dfn" href="#update-worker-state" id="ref-for-update-worker-state①⓪">Update Worker State</a> algorithm passing <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑦">active worker</a> and "<code>redundant</code>" as the arguments.</p>
+         <p>Run the <a data-link-type="dfn" href="#update-worker-state" id="ref-for-update-worker-state①⓪">Update Worker State</a> algorithm passing <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑨">active worker</a> and "<code>redundant</code>" as the arguments.</p>
         <li data-md>
          <p>Run the <a data-link-type="dfn" href="#update-registration-state" id="ref-for-update-registration-state⑧">Update Registration State</a> algorithm passing <var>registration</var>, "<code>active</code>" and null as the arguments.</p>
        </ol>
@@ -5516,7 +5998,7 @@ <h3 class="heading settled" id="try-clear-registration-algorithm"><span class="c
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥②">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥③">service worker registration</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
@@ -5530,7 +6012,7 @@ <h3 class="heading settled" id="try-clear-registration-algorithm"><span class="c
         <li data-md>
          <p><var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①⑧">waiting worker</a> is null or the result of running <a data-link-type="dfn" href="#service-worker-has-no-pending-events" id="ref-for-service-worker-has-no-pending-events③">Service Worker Has No Pending Events</a> with <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker①⑨">waiting worker</a> is true.</p>
         <li data-md>
-         <p><var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑧">active worker</a> is null or the result of running <a data-link-type="dfn" href="#service-worker-has-no-pending-events" id="ref-for-service-worker-has-no-pending-events④">Service Worker Has No Pending Events</a> with <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker④⑨">active worker</a> is true.</p>
+         <p><var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤⓪">active worker</a> is null or the result of running <a data-link-type="dfn" href="#service-worker-has-no-pending-events" id="ref-for-service-worker-has-no-pending-events④">Service Worker Has No Pending Events</a> with <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤①">active worker</a> is true.</p>
        </ul>
      </ol>
     </section>
@@ -5539,11 +6021,11 @@ <h3 class="heading settled" id="update-registration-state-algorithm"><span class
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥③">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥④">service worker registration</a></p>
       <dd data-md>
        <p><var>target</var>, a string (one of "<code>installing</code>", "<code>waiting</code>", and "<code>active</code>")</p>
       <dd data-md>
-       <p><var>source</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪①">service worker</a> or null</p>
+       <p><var>source</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑦">service worker</a> or null</p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
@@ -5560,7 +6042,7 @@ <h3 class="heading settled" id="update-registration-state-algorithm"><span class
          <p>For each <var>registrationObject</var> in <var>registrationObjects</var>:</p>
          <ol>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑥">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-installing" id="ref-for-dom-serviceworkerregistration-installing④">installing</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②②">installing worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑦">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②③">installing worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②⑧">relevant settings object</a>.</p>
+           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑥">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-installing" id="ref-for-dom-serviceworkerregistration-installing④">installing</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②②">installing worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑦">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-installing-worker" id="ref-for-dfn-installing-worker②③">installing worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②⑨">relevant settings object</a>.</p>
          </ol>
        </ol>
       <li data-md>
@@ -5572,22 +6054,22 @@ <h3 class="heading settled" id="update-registration-state-algorithm"><span class
          <p>For each <var>registrationObject</var> in <var>registrationObjects</var>:</p>
          <ol>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑦">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-waiting" id="ref-for-dom-serviceworkerregistration-waiting④">waiting</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②①">waiting worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑧">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②②">waiting worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object②⑨">relevant settings object</a>.</p>
+           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑦">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-waiting" id="ref-for-dom-serviceworkerregistration-waiting④">waiting</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②①">waiting worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑧">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②②">waiting worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③⓪">relevant settings object</a>.</p>
          </ol>
        </ol>
       <li data-md>
        <p>Else if <var>target</var> is "<code>active</code>", then:</p>
        <ol>
         <li data-md>
-         <p>Set <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤⓪">active worker</a> to <var>source</var>.</p>
+         <p>Set <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤②">active worker</a> to <var>source</var>.</p>
         <li data-md>
          <p>For each <var>registrationObject</var> in <var>registrationObjects</var>:</p>
          <ol>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑧">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-active" id="ref-for-dom-serviceworkerregistration-active④">active</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤①">active worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑨">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤②">active worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③⓪">relevant settings object</a>.</p>
+           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑧">Queue a task</a> to set the <code class="idl"><a data-link-type="idl" href="#dom-serviceworkerregistration-active" id="ref-for-dom-serviceworkerregistration-active④">active</a></code> attribute of <var>registrationObject</var> to null if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤③">active worker</a> is null, or the result of <a data-link-type="dfn" href="#get-the-service-worker-object" id="ref-for-get-the-service-worker-object⑨">getting the service worker object</a> that represents <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤④">active worker</a> in <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③①">relevant settings object</a>.</p>
          </ol>
        </ol>
-       <p>The <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-task" id="ref-for-concept-task⑨">task</a> <em>must</em> use <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③①">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①⑧">responsible event loop</a> and the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②③">DOM manipulation task source</a>.</p>
+       <p>The <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-task" id="ref-for-concept-task⑨">task</a> <em>must</em> use <var>registrationObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③②">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①⑧">responsible event loop</a> and the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②③">DOM manipulation task source</a>.</p>
      </ol>
     </section>
     <section class="algorithm" data-algorithm="Update Worker State">
@@ -5595,9 +6077,9 @@ <h3 class="heading settled" id="update-state-algorithm"><span class="content"><d
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪②">service worker</a></p>
+       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑧">service worker</a></p>
       <dd data-md>
-       <p><var>state</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪③">service worker</a> <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⑤">state</a></p>
+       <p><var>state</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑨">service worker</a> <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⑥">state</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>None</p>
@@ -5605,18 +6087,18 @@ <h3 class="heading settled" id="update-state-algorithm"><span class="content"><d
      <ol>
       <li data-md>
        <p class="assertion">Assert: <var>state</var> is not "<code>parsed</code>".</p>
-       <p class="note" role="note"><span class="marker">Note:</span> "<code>parsed</code>" is the initial state. A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪④">service worker</a> is never updated to this state.</p>
+       <p class="note" role="note"><span class="marker">Note:</span> "<code>parsed</code>" is the initial state. A <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①⓪">service worker</a> is never updated to this state.</p>
       <li data-md>
-       <p>Set <var>worker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⑥">state</a> to <var>state</var>.</p>
+       <p>Set <var>worker</var>’s <a data-link-type="dfn" href="#dfn-state" id="ref-for-dfn-state①⑦">state</a> to <var>state</var>.</p>
       <li data-md>
-       <p>Let <var>settingsObjects</var> be all <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②③">environment settings objects</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin①⑨">origin</a> is <var>worker</var>’s <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url①⓪">script url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-origin" id="ref-for-concept-url-origin⑨">origin</a>.</p>
+       <p>Let <var>settingsObjects</var> be all <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②③">environment settings objects</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-settings-object-origin" id="ref-for-concept-settings-object-origin②⓪">origin</a> is <var>worker</var>’s <a data-link-type="dfn" href="#dfn-script-url" id="ref-for-dfn-script-url①①">script url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-origin" id="ref-for-concept-url-origin⑨">origin</a>.</p>
       <li data-md>
        <p>For each <var>settingsObject</var> of <var>settingsObjects</var>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task③⑨">queue a task</a> on <var>settingsObject</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop①⑨">responsible event loop</a> in the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②④">DOM manipulation task source</a> to run the following steps:</p>
        <ol>
         <li data-md>
          <p>Let <var>objectMap</var> be <var>settingsObject</var>’s <a data-link-type="dfn" href="#environment-settings-object-service-worker-object-map" id="ref-for-environment-settings-object-service-worker-object-map①">service worker object map</a>.</p>
         <li data-md>
-         <p>If <var>objectMap</var>[<var>worker</var>] does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists⑦">exist</a>, then abort these steps.</p>
+         <p>If <var>objectMap</var>[<var>worker</var>] does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists②②">exist</a>, then abort these steps.</p>
         <li data-md>
          <p>Let <var>workerObj</var> be <var>objectMap</var>[<var>worker</var>].</p>
         <li data-md>
@@ -5654,7 +6136,7 @@ <h3 class="heading settled" id="scope-match-algorithm"><span class="content"><df
        <p><var>clientURL</var>, a <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url" id="ref-for-concept-url①④">URL</a></p>
       <dt data-md>Output
       <dd data-md>
-       <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥④">service worker registration</a></p>
+       <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⑤">service worker registration</a></p>
      </dl>
      <ol>
       <li data-md>
@@ -5666,7 +6148,7 @@ <h3 class="heading settled" id="scope-match-algorithm"><span class="content"><df
       <li data-md>
        <p>Let <var>scopeStringSet</var> be an empty list.</p>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑧">For each</a> (<var>entry storage key</var>, <var>entry scope</var>) of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map①⓪">registration map</a>'s <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys④">keys</a>:</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑨">For each</a> (<var>entry storage key</var>, <var>entry scope</var>) of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map①⓪">registration map</a>'s <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-getting-the-keys" id="ref-for-map-getting-the-keys⑤">keys</a>:</p>
        <ol>
         <li data-md>
          <p>If <var>storage key</var> <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key-equal" id="ref-for-storage-key-equal⑤">equals</a> <var>entry storage key</var>, then <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-append" id="ref-for-list-append⑧">append</a> <var>entry scope</var> to the end of <var>scopeStringSet</var>.</p>
@@ -5698,7 +6180,7 @@ <h3 class="heading settled" id="get-registration-algorithm"><span class="content
        <p><var>scope</var>, a <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url" id="ref-for-concept-url①⑤">URL</a></p>
       <dt data-md>Output
       <dd data-md>
-       <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⑤">service worker registration</a></p>
+       <p>A <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⑥">service worker registration</a></p>
      </dl>
      <ol>
       <li data-md>
@@ -5708,7 +6190,7 @@ <h3 class="heading settled" id="get-registration-algorithm"><span class="content
       <li data-md>
        <p>If <var>scope</var> is not null, set <var>scopeString</var> to <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-serializer" id="ref-for-concept-url-serializer①⑥">serialized</a> <var>scope</var> with the <em>exclude fragment flag</em> set.</p>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-iterate" id="ref-for-map-iterate⑥">For each</a> (<var>entry storage key</var>, <var>entry scope</var>) → <var>registration</var> of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map①①">registration map</a>:</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-iterate" id="ref-for-map-iterate⑦">For each</a> (<var>entry storage key</var>, <var>entry scope</var>) → <var>registration</var> of <a data-link-type="dfn" href="#dfn-scope-to-registration-map" id="ref-for-dfn-scope-to-registration-map①①">registration map</a>:</p>
        <ol>
         <li data-md>
          <p>If <var>storage key</var> <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#storage-key-equal" id="ref-for-storage-key-equal⑥">equals</a> <var>entry storage key</var> and <var>scopeString</var> matches <var>entry scope</var>, then return <var>registration</var>.</p>
@@ -5722,10 +6204,10 @@ <h3 class="heading settled" id="get-newest-worker-algorithm"><span class="conten
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⑥">service worker registration</a></p>
+       <p><var>registration</var>, a <a data-link-type="dfn" href="#dfn-service-worker-registration" id="ref-for-dfn-service-worker-registration⑥⑦">service worker registration</a></p>
       <dt data-md>Output
       <dd data-md>
-       <p><var>newestWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑤">service worker</a></p>
+       <p><var>newestWorker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①①">service worker</a></p>
      </dl>
      <ol>
       <li data-md>
@@ -5737,7 +6219,7 @@ <h3 class="heading settled" id="get-newest-worker-algorithm"><span class="conten
       <li data-md>
        <p>Else if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②③">waiting worker</a> is not null, set <var>newestWorker</var> to <var>registration</var>’s <a data-link-type="dfn" href="#dfn-waiting-worker" id="ref-for-dfn-waiting-worker②④">waiting worker</a>.</p>
       <li data-md>
-       <p>Else if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤③">active worker</a> is not null, set <var>newestWorker</var> to <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤④">active worker</a>.</p>
+       <p>Else if <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤⑤">active worker</a> is not null, set <var>newestWorker</var> to <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤⑥">active worker</a>.</p>
       <li data-md>
        <p>Return <var>newestWorker</var>.</p>
      </ol>
@@ -5747,7 +6229,7 @@ <h3 class="heading settled" id="service-worker-has-no-pending-events-algorithm">
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑥">service worker</a></p>
+       <p><var>worker</var>, a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①②">service worker</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>True or false, a boolean</p>
@@ -5843,7 +6325,7 @@ <h3 class="heading settled" id="resolve-get-client-promise-algorithm"><span clas
       <dd data-md>
        <p><var>client</var>, a <a data-link-type="dfn" href="#dfn-service-worker-client" id="ref-for-dfn-service-worker-client⑤①">service worker client</a></p>
       <dd data-md>
-       <p><var>promise</var>, a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects③⓪">promise</a></p>
+       <p><var>promise</var>, a <a data-link-type="dfn" href="http://tc39.github.io/ecma262/#sec-promise-objects" id="ref-for-sec-promise-objects③①">promise</a></p>
       <dt data-md>Output
       <dd data-md>
        <p>none</p>
@@ -5853,13 +6335,13 @@ <h3 class="heading settled" id="resolve-get-client-promise-algorithm"><span clas
        <p>If <var>client</var> is an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②⑤">environment settings object</a>, then:</p>
        <ol>
         <li data-md>
-         <p>If <var>client</var> is not a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context⑤">secure context</a>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④①">queue a task</a> to reject <var>promise</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#securityerror" id="ref-for-securityerror⑧">SecurityError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑥">DOMException</a></code>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③②">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②①">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑥">DOM manipulation task source</a>, and abort these steps.</p>
+         <p>If <var>client</var> is not a <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#secure-context" id="ref-for-secure-context⑤">secure context</a>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④①">queue a task</a> to reject <var>promise</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#securityerror" id="ref-for-securityerror⑧">SecurityError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑥">DOMException</a></code>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③③">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②①">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑥">DOM manipulation task source</a>, and abort these steps.</p>
        </ol>
       <li data-md>
        <p>Else:</p>
        <ol>
         <li data-md>
-         <p>If <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-creation-url" id="ref-for-concept-environment-creation-url⑨">creation URL</a> is not a <a data-link-type="dfn" href="https://w3c.github.io/webappsec-secure-contexts/#potentially-trustworthy-url" id="ref-for-potentially-trustworthy-url①">potentially trustworthy URL</a>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④②">queue a task</a> to reject <var>promise</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#securityerror" id="ref-for-securityerror⑨">SecurityError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑦">DOMException</a></code>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③③">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②②">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑦">DOM manipulation task source</a>, and abort these steps.</p>
+         <p>If <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-creation-url" id="ref-for-concept-environment-creation-url⑨">creation URL</a> is not a <a data-link-type="dfn" href="https://w3c.github.io/webappsec-secure-contexts/#potentially-trustworthy-url" id="ref-for-potentially-trustworthy-url①">potentially trustworthy URL</a>, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④②">queue a task</a> to reject <var>promise</var> with a "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#securityerror" id="ref-for-securityerror⑨">SecurityError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑦">DOMException</a></code>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③④">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②②">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑦">DOM manipulation task source</a>, and abort these steps.</p>
        </ol>
       <li data-md>
        <p>If <var>client</var> is an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object" id="ref-for-environment-settings-object②⑥">environment settings object</a> and is not a <a data-link-type="dfn" href="#dfn-window-client" id="ref-for-dfn-window-client①③">window client</a>, then:</p>
@@ -5867,7 +6349,7 @@ <h3 class="heading settled" id="resolve-get-client-promise-algorithm"><span clas
         <li data-md>
          <p>Let <var>clientObject</var> be the result of running <a data-link-type="dfn" href="#create-client" id="ref-for-create-client①">Create Client</a> algorithm with <var>client</var> as the argument.</p>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④③">Queue a task</a> to resolve <var>promise</var> with <var>clientObject</var>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③④">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②③">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑧">DOM manipulation task source</a>, and abort these steps.</p>
+         <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④③">Queue a task</a> to resolve <var>promise</var> with <var>clientObject</var>, on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③⑤">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②③">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑧">DOM manipulation task source</a>, and abort these steps.</p>
        </ol>
       <li data-md>
        <p>Else:</p>
@@ -5894,7 +6376,7 @@ <h3 class="heading settled" id="resolve-get-client-promise-algorithm"><span clas
           <li data-md>
            <p>If <var>client</var> is a <a data-link-type="dfn" href="#dfn-window-client" id="ref-for-dfn-window-client①④">window client</a>, set <var>ancestorOriginsList</var> to <var>browsingContext</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/document-sequences.html#nav-document" id="ref-for-nav-document①⑥">active document</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global⑧">relevant global object</a>'s <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/nav-history-apis.html#location" id="ref-for-location④">Location</a></code> object’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#concept-location-ancestor-origins-list" id="ref-for-concept-location-ancestor-origins-list④">ancestor origins list</a>'s associated list.</p>
           <li data-md>
-           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④⑤">Queue a task</a> to run the following steps on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③⑤">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②④">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑨">DOM manipulation task source</a>:</p>
+           <p><a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-task" id="ref-for-queue-a-task④⑤">Queue a task</a> to run the following steps on <var>promise</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#relevant-settings-object" id="ref-for-relevant-settings-object③⑥">relevant settings object</a>'s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#responsible-event-loop" id="ref-for-responsible-event-loop②④">responsible event loop</a> using the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#dom-manipulation-task-source" id="ref-for-dom-manipulation-task-source②⑨">DOM manipulation task source</a>:</p>
            <ol>
             <li data-md>
              <p>If <var>client</var>’s <a data-link-type="dfn" href="#service-worker-client-discarded-flag" id="ref-for-service-worker-client-discarded-flag⑤">discarded flag</a> is set, resolve <var>promise</var> with undefined and abort these steps.</p>
@@ -5912,9 +6394,9 @@ <h3 class="heading settled" id="query-cache-algorithm"><span class="content"><df
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>requestQuery</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑦">request</a></p>
+       <p><var>requestQuery</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request①①">request</a></p>
       <dd data-md>
-       <p><var>options</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑥">CacheQueryOptions</a></code> object, optional</p>
+       <p><var>options</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑦">CacheQueryOptions</a></code> object, optional</p>
       <dd data-md>
        <p><var>targetStorage</var>, a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list⑥">request response list</a>, optional</p>
       <dt data-md>Output
@@ -5923,7 +6405,7 @@ <h3 class="heading settled" id="query-cache-algorithm"><span class="content"><df
      </dl>
      <ol>
       <li data-md>
-       <p>Let <var>resultList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②①">list</a>.</p>
+       <p>Let <var>resultList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②④">list</a>.</p>
       <li data-md>
        <p>Let <var>storage</var> be null.</p>
       <li data-md>
@@ -5931,7 +6413,7 @@ <h3 class="heading settled" id="query-cache-algorithm"><span class="content"><df
       <li data-md>
        <p>Else, set <var>storage</var> to <var>targetStorage</var>.</p>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate①⑨">For each</a> <var>requestResponse</var> of <var>storage</var>:</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②⓪">For each</a> <var>requestResponse</var> of <var>storage</var>:</p>
        <ol>
         <li data-md>
          <p>Let <var>cachedRequest</var> be <var>requestResponse</var>’s request.</p>
@@ -5957,24 +6439,24 @@ <h3 class="heading settled" id="request-matches-cached-item-algorithm"><span cla
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>requestQuery</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑧">request</a></p>
+       <p><var>requestQuery</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request①②">request</a></p>
       <dd data-md>
-       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request⑨">request</a></p>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request①③">request</a></p>
       <dd data-md>
-       <p><var>response</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①⓪">response</a> or null, optional, defaulting to null</p>
+       <p><var>response</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①⑤">response</a> or null, optional, defaulting to null</p>
       <dd data-md>
-       <p><var>options</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑦">CacheQueryOptions</a></code> object, optional</p>
+       <p><var>options</var>, a <code class="idl"><a data-link-type="idl" href="#dictdef-cachequeryoptions" id="ref-for-dictdef-cachequeryoptions⑧">CacheQueryOptions</a></code> object, optional</p>
       <dt data-md>Output
       <dd data-md>
        <p>a boolean</p>
      </dl>
      <ol>
       <li data-md>
-       <p>If <var>options</var>["<code class="idl"><a data-link-type="idl" href="#dom-cachequeryoptions-ignoremethod" id="ref-for-dom-cachequeryoptions-ignoremethod">ignoreMethod</a></code>"] is false and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑥">method</a> is not `<code>GET</code>`, return false.</p>
+       <p>If <var>options</var>["<code class="idl"><a data-link-type="idl" href="#dom-cachequeryoptions-ignoremethod" id="ref-for-dom-cachequeryoptions-ignoremethod">ignoreMethod</a></code>"] is false and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑧">method</a> is not `<code>GET</code>`, return false.</p>
       <li data-md>
-       <p>Let <var>queryURL</var> be <var>requestQuery</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①⓪">url</a>.</p>
+       <p>Let <var>queryURL</var> be <var>requestQuery</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①①">url</a>.</p>
       <li data-md>
-       <p>Let <var>cachedURL</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①①">url</a>.</p>
+       <p>Let <var>cachedURL</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①②">url</a>.</p>
       <li data-md>
        <p>If <var>options</var>["<code class="idl"><a data-link-type="idl" href="#dom-cachequeryoptions-ignoresearch" id="ref-for-dom-cachequeryoptions-ignoresearch">ignoreSearch</a></code>"] is true, then:</p>
        <ol>
@@ -5988,7 +6470,7 @@ <h3 class="heading settled" id="request-matches-cached-item-algorithm"><span cla
       <li data-md>
        <p>If <var>response</var> is null, <var>options</var>["<code class="idl"><a data-link-type="idl" href="#dom-cachequeryoptions-ignorevary" id="ref-for-dom-cachequeryoptions-ignorevary">ignoreVary</a></code>"] is true, or <var>response</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response-header-list" id="ref-for-concept-response-header-list⑤">header list</a> does not <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#header-list-contains" id="ref-for-header-list-contains">contain</a> `<code>Vary</code>`, then return true.</p>
       <li data-md>
-       <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②②">list</a> containing the elements corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2②">field-values</a> of the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4②">Vary</a> header for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-value" id="ref-for-concept-header-value①">value</a> of the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header③">header</a> with <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name③">name</a> `<code>Vary</code>`.</p>
+       <p>Let <var>fieldValues</var> be the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑤">list</a> containing the elements corresponding to the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7230#section-3.2" id="ref-for-section-3.2②">field-values</a> of the <a data-link-type="dfn" href="https://tools.ietf.org/html/rfc7231#section-7.1.4" id="ref-for-section-7.1.4②">Vary</a> header for the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-value" id="ref-for-concept-header-value①">value</a> of the <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header③">header</a> with <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header-name" id="ref-for-concept-header-name③">name</a> `<code>Vary</code>`.</p>
       <li data-md>
        <p>For each <var>fieldValue</var> in <var>fieldValues</var>:</p>
        <ol>
@@ -6004,7 +6486,7 @@ <h3 class="heading settled" id="batch-cache-operations-algorithm"><span class="c
      <dl>
       <dt data-md>Input
       <dd data-md>
-       <p><var>operations</var>, a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②③">list</a> of <a data-link-type="dfn" href="#dfn-cache-batch-operation" id="ref-for-dfn-cache-batch-operation③">cache batch operation</a> objects</p>
+       <p><var>operations</var>, a <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑥">list</a> of <a data-link-type="dfn" href="#dfn-cache-batch-operation" id="ref-for-dfn-cache-batch-operation③">cache batch operation</a> objects</p>
       <dt data-md>Output
       <dd data-md>
        <p><var>resultList</var>, a <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list⑧">request response list</a></p>
@@ -6015,30 +6497,30 @@ <h3 class="heading settled" id="batch-cache-operations-algorithm"><span class="c
       <li data-md>
        <p>Let <var>backupCache</var> be a new <a data-link-type="dfn" href="#dfn-request-response-list" id="ref-for-dfn-request-response-list⑨">request response list</a> that is a copy of <var>cache</var>.</p>
       <li data-md>
-       <p>Let <var>addedItems</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②④">list</a>.</p>
+       <p>Let <var>addedItems</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑦">list</a>.</p>
       <li data-md>
        <p>Try running the following substeps atomically:</p>
        <ol>
         <li data-md>
-         <p>Let <var>resultList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑤">list</a>.</p>
+         <p>Let <var>resultList</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑧">list</a>.</p>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②⓪">For each</a> <var>operation</var> in <var>operations</var>:</p>
+         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②①">For each</a> <var>operation</var> in <var>operations</var>:</p>
          <ol>
           <li data-md>
            <p>If <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-type" id="ref-for-dfn-cache-batch-operation-type③">type</a> matches neither "<code>delete</code>" nor "<code>put</code>", <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①④">throw</a> a <code>TypeError</code>.</p>
           <li data-md>
            <p>If <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-type" id="ref-for-dfn-cache-batch-operation-type④">type</a> matches "<code>delete</code>" and <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-response" id="ref-for-dfn-cache-batch-operation-response②">response</a> is not null, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑤">throw</a> a <code>TypeError</code>.</p>
           <li data-md>
-           <p>If the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache②">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request③">request</a>, <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-options" id="ref-for-dfn-cache-batch-operation-options①">options</a>, and <var>addedItems</var> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-is-empty" id="ref-for-list-is-empty③">is not empty</a>, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑥">throw</a> an "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#invalidstateerror" id="ref-for-invalidstateerror①⓪">InvalidStateError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑧">DOMException</a></code>.</p>
+           <p>If the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache③">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request③">request</a>, <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-options" id="ref-for-dfn-cache-batch-operation-options①">options</a>, and <var>addedItems</var> <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-is-empty" id="ref-for-list-is-empty④">is not empty</a>, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑥">throw</a> an "<code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#invalidstateerror" id="ref-for-invalidstateerror①⓪">InvalidStateError</a></code>" <code class="idl"><a data-link-type="idl" href="https://webidl.spec.whatwg.org/#idl-DOMException" id="ref-for-idl-DOMException②⑧">DOMException</a></code>.</p>
           <li data-md>
-           <p>Let <var>requestResponses</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑥">list</a>.</p>
+           <p>Let <var>requestResponses</var> be an empty <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list" id="ref-for-list②⑨">list</a>.</p>
           <li data-md>
            <p>If <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-type" id="ref-for-dfn-cache-batch-operation-type⑤">type</a> matches "<code>delete</code>", then:</p>
            <ol>
             <li data-md>
-             <p>Set <var>requestResponses</var> to the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache③">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request④">request</a> and <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-options" id="ref-for-dfn-cache-batch-operation-options②">options</a>.</p>
+             <p>Set <var>requestResponses</var> to the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache④">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request④">request</a> and <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-options" id="ref-for-dfn-cache-batch-operation-options②">options</a>.</p>
             <li data-md>
-             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②①">For each</a> <var>requestResponse</var> in <var>requestResponses</var>:</p>
+             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②②">For each</a> <var>requestResponse</var> in <var>requestResponses</var>:</p>
              <ol>
               <li data-md>
                <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove②">Remove</a> the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item①①">item</a> whose value matches <var>requestResponse</var> from <var>cache</var>.</p>
@@ -6052,15 +6534,15 @@ <h3 class="heading settled" id="batch-cache-operations-algorithm"><span class="c
             <li data-md>
              <p>Let <var>r</var> be <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request⑤">request</a>'s associated <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-request" id="ref-for-concept-request-request①⓪">request</a>.</p>
             <li data-md>
-             <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①②">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme⑤">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑧">throw</a> a <code>TypeError</code>.</p>
+             <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①③">url</a>'s <a data-link-type="dfn" href="https://url.spec.whatwg.org/#concept-url-scheme" id="ref-for-concept-url-scheme⑤">scheme</a> is not one of "<code>http</code>" and "<code>https</code>", <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑧">throw</a> a <code>TypeError</code>.</p>
             <li data-md>
-             <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑦">method</a> is not `<code>GET</code>`, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑨">throw</a> a <code>TypeError</code>.</p>
+             <p>If <var>r</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-method" id="ref-for-concept-request-method⑨">method</a> is not `<code>GET</code>`, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw①⑨">throw</a> a <code>TypeError</code>.</p>
             <li data-md>
              <p>If <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-options" id="ref-for-dfn-cache-batch-operation-options③">options</a> is not null, <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#dfn-throw" id="ref-for-dfn-throw②⓪">throw</a> a <code>TypeError</code>.</p>
             <li data-md>
-             <p>Set <var>requestResponses</var> to the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache④">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request⑥">request</a>.</p>
+             <p>Set <var>requestResponses</var> to the result of running <a data-link-type="dfn" href="#query-cache" id="ref-for-query-cache⑤">Query Cache</a> with <var>operation</var>’s <a data-link-type="dfn" href="#dfn-cache-batch-operation-request" id="ref-for-dfn-cache-batch-operation-request⑥">request</a>.</p>
             <li data-md>
-             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②②">For each</a> <var>requestResponse</var> of <var>requestResponses</var>:</p>
+             <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②③">For each</a> <var>requestResponse</var> of <var>requestResponses</var>:</p>
              <ol>
               <li data-md>
                <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove③">Remove</a> the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item①②">item</a> whose value matches <var>requestResponse</var> from <var>cache</var>.</p>
@@ -6084,7 +6566,7 @@ <h3 class="heading settled" id="batch-cache-operations-algorithm"><span class="c
         <li data-md>
          <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-remove" id="ref-for-list-remove④">Remove</a> all the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-item" id="ref-for-list-item①③">items</a> from the <a data-link-type="dfn" href="#dfn-relevant-request-response-list" id="ref-for-dfn-relevant-request-response-list④">relevant request response list</a>.</p>
         <li data-md>
-         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②③">For each</a> <var>requestResponse</var> of <var>backupCache</var>:</p>
+         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②④">For each</a> <var>requestResponse</var> of <var>backupCache</var>:</p>
          <ol>
           <li data-md>
            <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-append" id="ref-for-list-append①②">Append</a> <var>requestResponse</var> to the <a data-link-type="dfn" href="#dfn-relevant-request-response-list" id="ref-for-dfn-relevant-request-response-list⑤">relevant request response list</a>.</p>
@@ -6125,14 +6607,14 @@ <h3 class="heading settled" id="is-async-module-algorithm"><span class="content"
          <p>Return true.</p>
        </ol>
       <li data-md>
-       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②④">For each</a> string <var>requested</var> of <var>record</var>.[[RequestedModules]]:</p>
+       <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-iterate" id="ref-for-list-iterate②⑤">For each</a> string <var>requested</var> of <var>record</var>.[[RequestedModules]]:</p>
        <ol>
         <li data-md>
          <p>Let <var>url</var> be the result of <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#resolve-a-module-specifier" id="ref-for-resolve-a-module-specifier">resolving a module specifier</a> given <var>base</var> and <var>requested</var>.</p>
         <li data-md>
          <p class="assertion">Assert: <var>url</var> is never failure, because <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#resolve-a-module-specifier" id="ref-for-resolve-a-module-specifier①">resolving a module specifier</a> must have been previously successful with these same two arguments.</p>
         <li data-md>
-         <p>If <var>seen</var> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain④">contain</a> <var>url</var>, then:</p>
+         <p>If <var>seen</var> does not <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list-contain" id="ref-for-list-contain⑥">contain</a> <var>url</var>, then:</p>
          <ol>
           <li data-md>
            <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#set-append" id="ref-for-set-append④">Append</a> <var>url</var> to <var>seen</var>.</p>
@@ -6154,22 +6636,77 @@ <h3 class="heading settled" id="is-async-module-algorithm"><span class="content"
        <p>Return false.</p>
      </ol>
     </section>
+    <section class="algorithm" data-algorithm="Lookup Race Response">
+     <h3 class="heading settled" id="lookup-race-response-algorithm"><span class="content"><dfn data-dfn-type="dfn" data-export id="lookup-race-response">Lookup Race Response<a class="self-link" href="#lookup-race-response"></a></dfn></span><a class="self-link" href="#lookup-race-response-algorithm"></a></h3>
+     <dl>
+      <dt data-md>Input
+      <dd data-md>
+       <p><var>request</var>, a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request" id="ref-for-concept-request①④">request</a></p>
+      <dt data-md>Output
+      <dd data-md>
+       <p>a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①⑥">response</a> or null</p>
+     </dl>
+     <ol>
+      <li data-md>
+       <p>Let <var>registration</var> be null.</p>
+      <li data-md>
+       <p>If <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#non-subresource-request" id="ref-for-non-subresource-request④">non-subresource request</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>If <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-reserved-client" id="ref-for-concept-request-reserved-client②">reserved client</a> is null, return null.</p>
+        <li data-md>
+         <p>Let <var>storage key</var> be the result of running <a data-link-type="dfn" href="https://storage.spec.whatwg.org/#obtain-a-storage-key" id="ref-for-obtain-a-storage-key①①">obtain a storage key</a> given <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-reserved-client" id="ref-for-concept-request-reserved-client③">reserved client</a>.</p>
+        <li data-md>
+         <p>Set <var>registration</var> to the result of running <a data-link-type="dfn" href="#match-service-worker-registration" id="ref-for-match-service-worker-registration⑧">Match Service Worker Registration</a> given <var>storage key</var> and <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-url" id="ref-for-concept-request-url①④">url</a>.</p>
+       </ol>
+      <li data-md>
+       <p>Else if <var>request</var> is a <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#subresource-request" id="ref-for-subresource-request③">subresource request</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>Let <var>client</var> be <var>request</var>’s <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-request-client" id="ref-for-concept-request-client⑤">client</a>.</p>
+        <li data-md>
+         <p>If <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker③⓪">active service worker</a> is null, return null.</p>
+        <li data-md>
+         <p>Set <var>registration</var> to <var>client</var>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-environment-active-service-worker" id="ref-for-concept-environment-active-service-worker③①">active service worker</a>'s <a data-link-type="dfn" href="#dfn-containing-service-worker-registration" id="ref-for-dfn-containing-service-worker-registration②⓪">containing service worker registration</a>.</p>
+       </ol>
+      <li data-md>
+       <p>Otherwise, return null.</p>
+      <li data-md>
+       <p>Let <var>activeWorker</var> be <var>registration</var>’s <a data-link-type="dfn" href="#dfn-active-worker" id="ref-for-dfn-active-worker⑤⑦">active worker</a>.</p>
+      <li data-md>
+       <p>Let <var>map</var> be <var>activeWorker</var>’s <a data-link-type="dfn" href="#dfn-service-worker-global-object" id="ref-for-dfn-service-worker-global-object②②">global object</a>'s <a data-link-type="dfn" href="#serviceworkerglobalscope-race-response-map" id="ref-for-serviceworkerglobalscope-race-response-map③">race response map</a>.</p>
+      <li data-md>
+       <p>If <var>map</var>[<var>request</var>] <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-exists" id="ref-for-map-exists②③">exists</a>, then:</p>
+       <ol>
+        <li data-md>
+         <p>Let <var>entry</var> be <var>map</var>[<var>request</var>].</p>
+        <li data-md>
+         <p><a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-remove" id="ref-for-map-remove⑦">Remove</a> <var>map</var>[<var>request</var>].</p>
+        <li data-md>
+         <p>Wait until <var>entry</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value⑧">value</a> is not "<code>pending</code>"</p>
+        <li data-md>
+         <p>If <var>entry</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value⑨">value</a> is <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-response" id="ref-for-concept-response①⑦">response</a>, return <var>entry</var>’s <a data-link-type="dfn" href="#race-response-value" id="ref-for-race-response-value①⓪">value</a>.</p>
+       </ol>
+      <li data-md>
+       <p>Return null.</p>
+     </ol>
+    </section>
    </section>
    <section>
     <h2 class="heading settled" id="extended-http-headers"><span class="content">Appendix B: Extended HTTP headers</span><a class="self-link" href="#extended-http-headers"></a></h2>
     <section>
      <h3 class="heading settled" id="service-worker-script-request"><span class="content">Service Worker Script Request</span><a class="self-link" href="#service-worker-script-request"></a></h3>
-     <p>An HTTP request to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①⑤">fetch</a> a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑦">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑧">script resource</a> will include the following <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header④">header</a>:</p>
+     <p>An HTTP request to <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-fetch" id="ref-for-concept-fetch①⑥">fetch</a> a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①③">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑧">script resource</a> will include the following <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header④">header</a>:</p>
      <dl>
       <dt data-md>`<dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="service-worker"><code>Service-Worker</code></dfn>`
       <dd data-md>
-       <p>Indicates this request is a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑧">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑨">script resource</a> request.</p>
+       <p>Indicates this request is a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①④">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource⑨">script resource</a> request.</p>
        <p class="note" role="note"><span class="marker">Note:</span> This header helps administrators log the requests and detect threats.</p>
      </dl>
     </section>
     <section>
      <h3 class="heading settled" id="service-worker-script-response"><span class="content">Service Worker Script Response</span><a class="self-link" href="#service-worker-script-response"></a></h3>
-     <p>An HTTP response to a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①⓪⑨">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource①⓪">script resource</a> request can include the following <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header⑤">header</a>:</p>
+     <p>An HTTP response to a <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①⑤">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource①⓪">script resource</a> request can include the following <a data-link-type="dfn" href="https://fetch.spec.whatwg.org/#concept-header" id="ref-for-concept-header⑤">header</a>:</p>
      <dl>
       <dt data-md>`<dfn class="dfn-paneled" data-dfn-type="dfn" data-noexport id="service-worker-allowed"><code>Service-Worker-Allowed</code></dfn>`
       <dd data-md>
@@ -6215,7 +6752,7 @@ <h3 class="heading settled" id="service-worker-script-response"><span class="con
     </section>
     <section>
      <h3 class="heading settled" id="syntax"><span class="content">Syntax</span><a class="self-link" href="#syntax"></a></h3>
-     <p><a data-link-type="biblio" href="#biblio-rfc5234" title="Augmented BNF for Syntax Specifications: ABNF">ABNF</a> for the values of the headers used by the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①⓪">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource①①">script resource</a> requests and responses:</p>
+     <p><a data-link-type="biblio" href="#biblio-rfc5234" title="Augmented BNF for Syntax Specifications: ABNF">ABNF</a> for the values of the headers used by the <a data-link-type="dfn" href="#dfn-service-worker" id="ref-for-dfn-service-worker①①⑥">service worker</a>'s <a data-link-type="dfn" href="#dfn-script-resource" id="ref-for-dfn-script-resource①①">script resource</a> requests and responses:</p>
 <pre>Service-Worker = %x73.63.72.69.70.74 ; "script", case-sensitive
 </pre>
      <p class="note" role="note"><span class="marker">Note:</span> The validation of the Service-Worker-Allowed header’s values is done by URL parsing algorithm (in Update algorithm) instead of using ABNF.</p>
@@ -6279,7 +6816,7 @@ <h2 class="no-num no-ref heading settled" id="index"><span class="content">Index
   <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="content">Terms defined by this specification</span><a class="self-link" href="#index-defined-here"></a></h3>
   <ul class="index">
    <li><a href="#activate">Activate</a><span>, in § Unnumbered section</span>
-   <li><a href="#service-worker-global-scope-activate-event">activate</a><span>, in § 4.7</span>
+   <li><a href="#service-worker-global-scope-activate-event">activate</a><span>, in § 4.8</span>
    <li><a href="#dom-serviceworkerstate-activated">"activated"</a><span>, in § 3.1</span>
    <li><a href="#dom-serviceworkerstate-activating">"activating"</a><span>, in § 3.1</span>
    <li>
@@ -6292,6 +6829,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-cache-addall">addAll(requests)</a><span>, in § 5.4.4</span>
    <li><a href="#extendableevent-add-lifetime-promise">add lifetime promise</a><span>, in § 4.4</span>
    <li><a href="#dom-cache-add">add(request)</a><span>, in § 5.4.3</span>
+   <li><a href="#dom-installevent-addroutes">addRoutes(rules)</a><span>, in § 4.5.1</span>
    <li>
     "all"
     <ul>
@@ -6306,9 +6844,15 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dfn-bad-import-script-response">bad import script response</a><span>, in § Unnumbered section</span>
    <li><a href="#batch-cache-operations">Batch Cache Operations</a><span>, in § Unnumbered section</span>
    <li><a href="#dfn-service-worker-client-browsing-context">browsing context</a><span>, in § 4.2</span>
+   <li><a href="#dom-routersourceenum-cache">"cache"</a><span>, in § 4.5</span>
    <li><a href="#cache">Cache</a><span>, in § 5.4</span>
    <li><a href="#dfn-cache-batch-operation">cache batch operation</a><span>, in § 5.4</span>
-   <li><a href="#dom-multicachequeryoptions-cachename">cacheName</a><span>, in § 5.5</span>
+   <li>
+    cacheName
+    <ul>
+     <li><a href="#dom-multicachequeryoptions-cachename">dict-member for MultiCacheQueryOptions</a><span>, in § 5.5</span>
+     <li><a href="#dom-routersourcedict-cachename">dict-member for RouterSourceDict</a><span>, in § 4.5</span>
+    </ul>
    <li><a href="#dictdef-cachequeryoptions">CacheQueryOptions</a><span>, in § 5.4</span>
    <li><a href="#global-caches-attribute">caches</a><span>, in § 5.3.1</span>
    <li><a href="#cachestorage">CacheStorage</a><span>, in § 5.5</span>
@@ -6320,26 +6864,27 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     clientId
     <ul>
-     <li><a href="#dom-fetchevent-clientid">attribute for FetchEvent</a><span>, in § 4.5.3</span>
-     <li><a href="#dom-fetcheventinit-clientid">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetchevent-clientid">attribute for FetchEvent</a><span>, in § 4.6.3</span>
+     <li><a href="#dom-fetcheventinit-clientid">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
    <li><a href="#dfn-client-message-queue">client message queue</a><span>, in § 3.4</span>
    <li><a href="#dictdef-clientqueryoptions">ClientQueryOptions</a><span>, in § 4.3</span>
    <li><a href="#clients">Clients</a><span>, in § 4.3</span>
    <li><a href="#dom-serviceworkerglobalscope-clients">clients</a><span>, in § 4.1.1</span>
    <li><a href="#enumdef-clienttype">ClientType</a><span>, in § 4.3</span>
+   <li><a href="#dom-routerrule-condition">condition</a><span>, in § 4.5</span>
    <li>
     constructor(type)
     <ul>
      <li><a href="#dom-extendableevent-extendableevent">constructor for ExtendableEvent</a><span>, in § 4.4</span>
-     <li><a href="#dom-extendablemessageevent-extendablemessageevent">constructor for ExtendableMessageEvent</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageevent-extendablemessageevent">constructor for ExtendableMessageEvent</a><span>, in § 4.7</span>
     </ul>
    <li>
     constructor(type, eventInitDict)
     <ul>
      <li><a href="#dom-extendableevent-extendableevent">constructor for ExtendableEvent</a><span>, in § 4.4</span>
-     <li><a href="#dom-extendablemessageevent-extendablemessageevent">constructor for ExtendableMessageEvent</a><span>, in § 4.6</span>
-     <li><a href="#dom-fetchevent-fetchevent">constructor for FetchEvent</a><span>, in § 4.5</span>
+     <li><a href="#dom-extendablemessageevent-extendablemessageevent">constructor for ExtendableMessageEvent</a><span>, in § 4.7</span>
+     <li><a href="#dom-fetchevent-fetchevent">constructor for FetchEvent</a><span>, in § 4.6</span>
     </ul>
    <li><a href="#dfn-containing-job-queue">containing job queue</a><span>, in § Unnumbered section</span>
    <li><a href="#dfn-containing-service-worker-registration">containing service worker registration</a><span>, in § 2.1</span>
@@ -6349,13 +6894,14 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dfn-control">controlling</a><span>, in § 2.5</span>
    <li><a href="#dfn-control">controls</a><span>, in § 2.5</span>
    <li><a href="#create-client">Create Client</a><span>, in § Unnumbered section</span>
+   <li><a href="#create-fetch-event-and-dispatch">Create Fetch Event and Dispatch</a><span>, in § Unnumbered section</span>
    <li><a href="#create-job">Create Job</a><span>, in § Unnumbered section</span>
    <li><a href="#create-window-client">Create Window Client</a><span>, in § Unnumbered section</span>
    <li>
     data
     <ul>
-     <li><a href="#dom-extendablemessageevent-data">attribute for ExtendableMessageEvent</a><span>, in § 4.6.1</span>
-     <li><a href="#dom-extendablemessageeventinit-data">dict-member for ExtendableMessageEventInit</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageevent-data">attribute for ExtendableMessageEvent</a><span>, in § 4.7.1</span>
+     <li><a href="#dom-extendablemessageeventinit-data">dict-member for ExtendableMessageEventInit</a><span>, in § 4.7</span>
     </ul>
    <li><a href="#dfn-dedicatedworker-client">dedicated worker client</a><span>, in § 2.4</span>
    <li><a href="#dom-cachestorage-delete">delete(cacheName)</a><span>, in § 5.5.4</span>
@@ -6370,16 +6916,17 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dictdef-extendableeventinit">ExtendableEventInit</a><span>, in § 4.4</span>
    <li><a href="#dom-extendableevent-extendableevent">ExtendableEvent(type)</a><span>, in § 4.4</span>
    <li><a href="#dom-extendableevent-extendableevent">ExtendableEvent(type, eventInitDict)</a><span>, in § 4.4</span>
-   <li><a href="#extendablemessageevent">ExtendableMessageEvent</a><span>, in § 4.6</span>
-   <li><a href="#dictdef-extendablemessageeventinit">ExtendableMessageEventInit</a><span>, in § 4.6</span>
-   <li><a href="#dom-extendablemessageevent-extendablemessageevent">ExtendableMessageEvent(type)</a><span>, in § 4.6</span>
-   <li><a href="#dom-extendablemessageevent-extendablemessageevent">ExtendableMessageEvent(type, eventInitDict)</a><span>, in § 4.6</span>
+   <li><a href="#extendablemessageevent">ExtendableMessageEvent</a><span>, in § 4.7</span>
+   <li><a href="#dictdef-extendablemessageeventinit">ExtendableMessageEventInit</a><span>, in § 4.7</span>
+   <li><a href="#dom-extendablemessageevent-extendablemessageevent">ExtendableMessageEvent(type)</a><span>, in § 4.7</span>
+   <li><a href="#dom-extendablemessageevent-extendablemessageevent">ExtendableMessageEvent(type, eventInitDict)</a><span>, in § 4.7</span>
    <li><a href="#extendableevent-extend-lifetime-promises">extend lifetime promises</a><span>, in § 4.4</span>
-   <li><a href="#service-worker-global-scope-fetch-event">fetch</a><span>, in § 4.7</span>
-   <li><a href="#fetchevent">FetchEvent</a><span>, in § 4.5</span>
+   <li><a href="#service-worker-global-scope-fetch-event">fetch</a><span>, in § 4.8</span>
+   <li><a href="#dom-routersourceenum-fetch-event">"fetch-event"</a><span>, in § 4.5</span>
+   <li><a href="#fetchevent">FetchEvent</a><span>, in § 4.6</span>
    <li><a href="#service-worker-timing-info-fetch-event-dispatch-time">fetch event dispatch time</a><span>, in § 2.2</span>
-   <li><a href="#dictdef-fetcheventinit">FetchEventInit</a><span>, in § 4.5</span>
-   <li><a href="#dom-fetchevent-fetchevent">FetchEvent(type, eventInitDict)</a><span>, in § 4.5</span>
+   <li><a href="#dictdef-fetcheventinit">FetchEventInit</a><span>, in § 4.6</span>
+   <li><a href="#dom-fetchevent-fetchevent">FetchEvent(type, eventInitDict)</a><span>, in § 4.6</span>
    <li><a href="#finish-job">Finish Job</a><span>, in § Unnumbered section</span>
    <li><a href="#fire-functional-event">Fire a functional event</a><span>, in § Unnumbered section</span>
    <li><a href="#fire-functional-event">Fire Functional Event</a><span>, in § Unnumbered section</span>
@@ -6399,6 +6946,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-serviceworkercontainer-getregistration">getRegistration()</a><span>, in § 3.4.4</span>
    <li><a href="#dom-serviceworkercontainer-getregistration">getRegistration(clientURL)</a><span>, in § 3.4.4</span>
    <li><a href="#dom-serviceworkercontainer-getregistrations">getRegistrations()</a><span>, in § 3.4.5</span>
+   <li><a href="#get-router-source">Get Router Source</a><span>, in § Unnumbered section</span>
    <li><a href="#dom-navigationpreloadmanager-getstate">getState()</a><span>, in § 3.6.4</span>
    <li><a href="#get-the-service-worker-object">get the service worker object</a><span>, in § 3.1.1</span>
    <li><a href="#get-the-service-worker-registration-object">get the service worker registration object</a><span>, in § 3.2.1</span>
@@ -6413,8 +6961,8 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     handled
     <ul>
-     <li><a href="#dom-fetchevent-handled">attribute for FetchEvent</a><span>, in § 4.5.6</span>
-     <li><a href="#dom-fetcheventinit-handled">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetchevent-handled">attribute for FetchEvent</a><span>, in § 4.6.6</span>
+     <li><a href="#dom-fetcheventinit-handled">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
    <li><a href="#handle-fetch">Handle Fetch</a><span>, in § Unnumbered section</span>
    <li><a href="#dfn-handle-fetch-task-source">handle fetch task source</a><span>, in § 2.6</span>
@@ -6432,8 +6980,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#importscripts-method">importScripts(urls)</a><span>, in § 6.3.2</span>
    <li><a href="#dom-clientqueryoptions-includeuncontrolled">includeUncontrolled</a><span>, in § 4.3</span>
    <li><a href="#install">Install</a><span>, in § Unnumbered section</span>
-   <li><a href="#service-worker-global-scope-install-event">install</a><span>, in § 4.7</span>
+   <li><a href="#service-worker-global-scope-install-event">install</a><span>, in § 4.8</span>
    <li><a href="#dom-serviceworkerstate-installed">"installed"</a><span>, in § 3.1</span>
+   <li><a href="#installevent">InstallEvent</a><span>, in § 4.5</span>
    <li><a href="#dom-serviceworkerstate-installing">"installing"</a><span>, in § 3.1</span>
    <li><a href="#dom-serviceworkerregistration-installing">installing</a><span>, in § 3.2.2</span>
    <li><a href="#dfn-installing-worker">installing worker</a><span>, in § 2.3</span>
@@ -6453,12 +7002,14 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     lastEventId
     <ul>
-     <li><a href="#dom-extendablemessageevent-lasteventid">attribute for ExtendableMessageEvent</a><span>, in § 4.6.3</span>
-     <li><a href="#dom-extendablemessageeventinit-lasteventid">dict-member for ExtendableMessageEventInit</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageevent-lasteventid">attribute for ExtendableMessageEvent</a><span>, in § 4.7.3</span>
+     <li><a href="#dom-extendablemessageeventinit-lasteventid">dict-member for ExtendableMessageEventInit</a><span>, in § 4.7</span>
     </ul>
    <li><a href="#dfn-last-update-check-time">last update check time</a><span>, in § 2.3</span>
    <li><a href="#dfn-lifecycle-events">Lifecycle events</a><span>, in § 2.1.2</span>
    <li><a href="#dfn-job-list-of-equivalent-jobs">list of equivalent jobs</a><span>, in § Unnumbered section</span>
+   <li><a href="#service-worker-list-of-router-rules">list of router rules</a><span>, in § 2.1</span>
+   <li><a href="#lookup-race-response">Lookup Race Response</a><span>, in § Unnumbered section</span>
    <li>
     matchAll()
     <ul>
@@ -6480,18 +7031,19 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
      <li><a href="#dom-cache-match">method for Cache</a><span>, in § 5.4.1</span>
      <li><a href="#dom-cachestorage-match">method for CacheStorage</a><span>, in § 5.5.1</span>
     </ul>
+   <li><a href="#match-router-condition">Match Router Condition</a><span>, in § Unnumbered section</span>
    <li><a href="#match-service-worker-registration">Match Service Worker Registration</a><span>, in § Unnumbered section</span>
    <li>
     message
     <ul>
      <li><a href="#service-worker-container-message-event">event for ServiceWorkerContainer</a><span>, in § 3.5</span>
-     <li><a href="#eventdef-serviceworkerglobalscope-message">event for ServiceWorkerGlobalScope</a><span>, in § 4.7</span>
+     <li><a href="#eventdef-serviceworkerglobalscope-message">event for ServiceWorkerGlobalScope</a><span>, in § 4.8</span>
     </ul>
    <li>
     messageerror
     <ul>
      <li><a href="#service-worker-container-messageerror-event">event for ServiceWorkerContainer</a><span>, in § 3.5</span>
-     <li><a href="#eventdef-serviceworkerglobalscope-messageerror">event for ServiceWorkerGlobalScope</a><span>, in § 4.7</span>
+     <li><a href="#eventdef-serviceworkerglobalscope-messageerror">event for ServiceWorkerGlobalScope</a><span>, in § 4.8</span>
     </ul>
    <li><a href="#dictdef-multicachequeryoptions">MultiCacheQueryOptions</a><span>, in § 5.5</span>
    <li><a href="#dfn-name-to-cache-map">name to cache map</a><span>, in § 5.1</span>
@@ -6507,6 +7059,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     </ul>
    <li><a href="#dictdef-navigationpreloadstate">NavigationPreloadState</a><span>, in § 3.6</span>
    <li><a href="#dom-frametype-nested">"nested"</a><span>, in § 4.2</span>
+   <li><a href="#dom-routersourceenum-network">"network"</a><span>, in § 4.5</span>
    <li>
     "none"
     <ul>
@@ -6514,6 +7067,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
      <li><a href="#dom-serviceworkerupdateviacache-none">enum-value for ServiceWorkerUpdateViaCache</a><span>, in § 3.2</span>
     </ul>
    <li><a href="#notify-controller-change">Notify Controller Change</a><span>, in § Unnumbered section</span>
+   <li><a href="#dom-runningstatus-not-running">"not-running"</a><span>, in § 4.5</span>
    <li><a href="#dom-serviceworkerglobalscope-onactivate">onactivate</a><span>, in § 4.1.5</span>
    <li><a href="#dom-serviceworkercontainer-oncontrollerchange">oncontrollerchange</a><span>, in § 3.4.7</span>
    <li><a href="#dom-serviceworkerglobalscope-onfetch">onfetch</a><span>, in § 4.1.5</span>
@@ -6535,21 +7089,23 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-cachestorage-open">open(cacheName)</a><span>, in § 5.5.3</span>
    <li><a href="#dom-clients-openwindow">openWindow(url)</a><span>, in § 4.3.3</span>
    <li><a href="#dfn-cache-batch-operation-options">options</a><span>, in § 5.4</span>
+   <li><a href="#dom-routercondition-or">or</a><span>, in § 4.5</span>
    <li>
     origin
     <ul>
-     <li><a href="#dom-extendablemessageevent-origin">attribute for ExtendableMessageEvent</a><span>, in § 4.6.2</span>
+     <li><a href="#dom-extendablemessageevent-origin">attribute for ExtendableMessageEvent</a><span>, in § 4.7.2</span>
      <li><a href="#service-worker-client-origin">dfn for service worker client</a><span>, in § 2.4</span>
-     <li><a href="#dom-extendablemessageeventinit-origin">dict-member for ExtendableMessageEventInit</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageeventinit-origin">dict-member for ExtendableMessageEventInit</a><span>, in § 4.7</span>
     </ul>
    <li><a href="#dom-serviceworkerstate-parsed">"parsed"</a><span>, in § 3.1</span>
+   <li><a href="#parse-url-pattern">Parse URL Pattern</a><span>, in § Unnumbered section</span>
    <li><a href="#extendableevent-pending-promises-count">pending promises count</a><span>, in § 4.4</span>
    <li><a href="#dfn-policy-container">policy container</a><span>, in § 2.1</span>
    <li>
     ports
     <ul>
-     <li><a href="#dom-extendablemessageevent-ports">attribute for ExtendableMessageEvent</a><span>, in § 4.6.5</span>
-     <li><a href="#dom-extendablemessageeventinit-ports">dict-member for ExtendableMessageEventInit</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageevent-ports">attribute for ExtendableMessageEvent</a><span>, in § 4.7.5</span>
+     <li><a href="#dom-extendablemessageeventinit-ports">dict-member for ExtendableMessageEventInit</a><span>, in § 4.7</span>
     </ul>
    <li>
     postMessage(message)
@@ -6569,15 +7125,18 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
      <li><a href="#dom-client-postmessage">method for Client</a><span>, in § 4.2.5</span>
      <li><a href="#dom-serviceworker-postmessage">method for ServiceWorker</a><span>, in § 3.1.4</span>
     </ul>
-   <li><a href="#fetchevent-potential-response">potential response</a><span>, in § 4.5</span>
+   <li><a href="#fetchevent-potential-response">potential response</a><span>, in § 4.6</span>
    <li>
     preloadResponse
     <ul>
-     <li><a href="#dom-fetchevent-preloadresponse">attribute for FetchEvent</a><span>, in § 4.5.2</span>
-     <li><a href="#dom-fetcheventinit-preloadresponse">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetchevent-preloadresponse">attribute for FetchEvent</a><span>, in § 4.6.2</span>
+     <li><a href="#dom-fetcheventinit-preloadresponse">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
    <li><a href="#dom-cache-put">put(request, response)</a><span>, in § 5.4.5</span>
    <li><a href="#query-cache">Query Cache</a><span>, in § Unnumbered section</span>
+   <li><a href="#dom-routersourceenum-race-network-and-fetch-handler">"race-network-and-fetch-handler"</a><span>, in § 4.5</span>
+   <li><a href="#dfn-race-response">race response</a><span>, in § 4.1</span>
+   <li><a href="#serviceworkerglobalscope-race-response-map">race response map</a><span>, in § 4.1</span>
    <li><a href="#dom-serviceworkercontainer-ready">ready</a><span>, in § 3.4.2</span>
    <li><a href="#serviceworkercontainer-ready-promise">ready promise</a><span>, in § 3.4</span>
    <li><a href="#dom-serviceworkerstate-redundant">"redundant"</a><span>, in § 3.1</span>
@@ -6599,32 +7158,43 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     replacesClientId
     <ul>
-     <li><a href="#dom-fetchevent-replacesclientid">attribute for FetchEvent</a><span>, in § 4.5.5</span>
-     <li><a href="#dom-fetcheventinit-replacesclientid">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetchevent-replacesclientid">attribute for FetchEvent</a><span>, in § 4.6.5</span>
+     <li><a href="#dom-fetcheventinit-replacesclientid">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
    <li>
     request
     <ul>
-     <li><a href="#dom-fetchevent-request">attribute for FetchEvent</a><span>, in § 4.5.1</span>
+     <li><a href="#dom-fetchevent-request">attribute for FetchEvent</a><span>, in § 4.6.1</span>
      <li><a href="#dfn-cache-batch-operation-request">dfn for cache batch operation</a><span>, in § 5.4</span>
-     <li><a href="#dom-fetcheventinit-request">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetcheventinit-request">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
+   <li><a href="#dom-routercondition-requestdestination">requestDestination</a><span>, in § 4.5</span>
    <li><a href="#request-matches-cached-item">Request Matches Cached Item</a><span>, in § Unnumbered section</span>
+   <li><a href="#dom-routercondition-requestmethod">requestMethod</a><span>, in § 4.5</span>
+   <li><a href="#dom-routercondition-requestmode">requestMode</a><span>, in § 4.5</span>
    <li><a href="#dfn-request-response-list">request response list</a><span>, in § 5.1</span>
    <li><a href="#resolve-get-client-promise">Resolve Get Client Promise</a><span>, in § Unnumbered section</span>
    <li><a href="#resolve-job-promise">Resolve Job Promise</a><span>, in § Unnumbered section</span>
-   <li><a href="#fetchevent-respond-with-entered-flag">respond-with entered flag</a><span>, in § 4.5</span>
-   <li><a href="#fetchevent-respond-with-error-flag">respond-with error flag</a><span>, in § 4.5</span>
-   <li><a href="#dom-fetchevent-respondwith">respondWith(r)</a><span>, in § 4.5.7</span>
+   <li><a href="#fetchevent-respond-with-entered-flag">respond-with entered flag</a><span>, in § 4.6</span>
+   <li><a href="#fetchevent-respond-with-error-flag">respond-with error flag</a><span>, in § 4.6</span>
+   <li><a href="#dom-fetchevent-respondwith">respondWith(r)</a><span>, in § 4.6.7</span>
    <li><a href="#dfn-cache-batch-operation-response">response</a><span>, in § 5.4</span>
    <li>
     resultingClientId
     <ul>
-     <li><a href="#dom-fetchevent-resultingclientid">attribute for FetchEvent</a><span>, in § 4.5.4</span>
-     <li><a href="#dom-fetcheventinit-resultingclientid">dict-member for FetchEventInit</a><span>, in § 4.5</span>
+     <li><a href="#dom-fetchevent-resultingclientid">attribute for FetchEvent</a><span>, in § 4.6.4</span>
+     <li><a href="#dom-fetcheventinit-resultingclientid">dict-member for FetchEventInit</a><span>, in § 4.6</span>
     </ul>
+   <li><a href="#dictdef-routercondition">RouterCondition</a><span>, in § 4.5</span>
+   <li><a href="#dictdef-routerrule">RouterRule</a><span>, in § 4.5</span>
+   <li><a href="#typedefdef-routersource">RouterSource</a><span>, in § 4.5</span>
+   <li><a href="#dictdef-routersourcedict">RouterSourceDict</a><span>, in § 4.5</span>
+   <li><a href="#enumdef-routersourceenum">RouterSourceEnum</a><span>, in § 4.5</span>
    <li><a href="#run-job">Run Job</a><span>, in § Unnumbered section</span>
+   <li><a href="#dom-runningstatus-running">"running"</a><span>, in § 4.5</span>
    <li><a href="#service-worker-running">running</a><span>, in § 2.1</span>
+   <li><a href="#enumdef-runningstatus">RunningStatus</a><span>, in § 4.5</span>
+   <li><a href="#dom-routercondition-runningstatus">runningStatus</a><span>, in § 4.5</span>
    <li><a href="#run-service-worker">Run Service Worker</a><span>, in § Unnumbered section</span>
    <li><a href="#schedule-job">Schedule Job</a><span>, in § Unnumbered section</span>
    <li>
@@ -6692,6 +7262,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dfn-set-of-extended-events">set of extended events</a><span>, in § 2.1</span>
    <li><a href="#dfn-set-of-used-scripts">set of used scripts</a><span>, in § 2.1</span>
    <li><a href="#set-registration">Set Registration</a><span>, in § Unnumbered section</span>
+   <li><a href="#setup-serviceworkerglobalscope①">Setup ServiceWorkerGlobalScope</a><span>, in § Unnumbered section</span>
    <li><a href="#dom-clienttype-sharedworker">"sharedworker"</a><span>, in § 4.3</span>
    <li><a href="#dfn-sharedworker-client">shared worker client</a><span>, in § 2.4</span>
    <li><a href="#should-skip-event">Should Skip Event</a><span>, in § Unnumbered section</span>
@@ -6701,8 +7272,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li>
     source
     <ul>
-     <li><a href="#dom-extendablemessageevent-source">attribute for ExtendableMessageEvent</a><span>, in § 4.6.4</span>
-     <li><a href="#dom-extendablemessageeventinit-source">dict-member for ExtendableMessageEventInit</a><span>, in § 4.6</span>
+     <li><a href="#dom-extendablemessageevent-source">attribute for ExtendableMessageEvent</a><span>, in § 4.7.4</span>
+     <li><a href="#dom-extendablemessageeventinit-source">dict-member for ExtendableMessageEventInit</a><span>, in § 4.7</span>
+     <li><a href="#dom-routerrule-source">dict-member for RouterRule</a><span>, in § 4.5</span>
     </ul>
    <li><a href="#service-worker-registration-stale">stale</a><span>, in § 2.3</span>
    <li><a href="#dom-serviceworkercontainer-startmessages">startMessages()</a><span>, in § 3.4.6</span>
@@ -6759,14 +7331,17 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     </ul>
    <li><a href="#update-worker-state">Update Worker State</a><span>, in § Unnumbered section</span>
    <li><a href="#dom-client-url">url</a><span>, in § 4.2.1</span>
+   <li><a href="#dom-routercondition-urlpattern">urlPattern</a><span>, in § 4.5</span>
    <li><a href="#dfn-use">used</a><span>, in § 2.5</span>
    <li><a href="#dfn-use">uses</a><span>, in § 2.5</span>
    <li><a href="#dfn-use">using</a><span>, in § 2.5</span>
+   <li><a href="#race-response-value">value</a><span>, in § 4.1</span>
+   <li><a href="#verify-router-condition">Verify Router Condition</a><span>, in § Unnumbered section</span>
    <li><a href="#dfn-service-worker-client-visibilitystate">visibility state</a><span>, in § 4.2</span>
    <li><a href="#dom-windowclient-visibilitystate">visibilityState</a><span>, in § 4.2.7</span>
    <li><a href="#dom-serviceworkerregistration-waiting">waiting</a><span>, in § 3.2.3</span>
    <li><a href="#dfn-waiting-worker">waiting worker</a><span>, in § 2.3</span>
-   <li><a href="#fetchevent-wait-to-respond-flag">wait to respond flag</a><span>, in § 4.5</span>
+   <li><a href="#fetchevent-wait-to-respond-flag">wait to respond flag</a><span>, in § 4.6</span>
    <li><a href="#dom-extendableevent-waituntil">waitUntil(f)</a><span>, in § 4.4.1</span>
    <li><a href="#dom-clienttype-window">"window"</a><span>, in § 4.3</span>
    <li><a href="#dfn-window-client">window client</a><span>, in § 2.4</span>
@@ -6819,6 +7394,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="198b92c1">NormalCompletion</span>
      <li><span class="dfn-paneled" id="c08e1049">ThrowCompletion</span>
      <li><span class="dfn-paneled" id="4a79c433">abrupt completion</span>
+     <li><span class="dfn-paneled" id="690506c4">agent</span>
      <li><span class="dfn-paneled" id="9ff141c4">assert</span>
      <li><span class="dfn-paneled" id="70f7889c">completion</span>
      <li><span class="dfn-paneled" id="1aec1016">cyclic module record</span>
@@ -6837,7 +7413,9 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="c56329c9">"report"</span>
      <li><span class="dfn-paneled" id="e806d5a8">Headers</span>
      <li><span class="dfn-paneled" id="f9da6f1f">Request</span>
+     <li><span class="dfn-paneled" id="b4c5b3f7">RequestDestination</span>
      <li><span class="dfn-paneled" id="8ba500d2">RequestInfo</span>
+     <li><span class="dfn-paneled" id="4cf7cda3">RequestMode</span>
      <li><span class="dfn-paneled" id="08a12aad">Response</span>
      <li><span class="dfn-paneled" id="49a5521a">abort</span>
      <li><span class="dfn-paneled" id="3eff7ece">aborted flag</span>
@@ -6875,6 +7453,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="fa4ea124">initiator</span>
      <li><span class="dfn-paneled" id="9a95489b">internal response</span>
      <li><span class="dfn-paneled" id="50b05fad">method</span>
+     <li><span class="dfn-paneled" id="cb98f71f">mode</span>
      <li><span class="dfn-paneled" id="4b84a0bc">name</span>
      <li><span class="dfn-paneled" id="2889d1ec">navigation request</span>
      <li><span class="dfn-paneled" id="eb1b1af3">network error</span>
@@ -7064,6 +7643,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="4e92bc80">get the keys</span>
      <li><span class="dfn-paneled" id="715f22e4">if aborted</span>
      <li><span class="dfn-paneled" id="860300d4">implementation-defined</span>
+     <li><span class="dfn-paneled" id="7a87d819">is</span>
      <li><span class="dfn-paneled" id="dd460c8e">is not empty</span>
      <li><span class="dfn-paneled" id="5afbefcd">item <small>(for list)</small></span>
      <li><span class="dfn-paneled" id="c88f3887">item <small>(for struct)</small></span>
@@ -7176,6 +7756,15 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="ca3ca4ae">url parser</span>
      <li><span class="dfn-paneled" id="5442ea33">url serializer</span>
     </ul>
+   <li>
+    <a data-link-type="biblio">[URLPATTERN]</a> defines the following terms:
+    <ul>
+     <li><span class="dfn-paneled" id="1b28d572">URLPattern</span>
+     <li><span class="dfn-paneled" id="31f25047">URLPatternCompatible</span>
+     <li><span class="dfn-paneled" id="bd47cd40">build a urlpattern from a web idl value</span>
+     <li><span class="dfn-paneled" id="1cf5eca2">has regexp groups</span>
+     <li><span class="dfn-paneled" id="35a2c80d">match</span>
+    </ul>
    <li>
     <a data-link-type="biblio">[WEBIDL]</a> defines the following terms:
     <ul>
@@ -7272,6 +7861,8 @@ <h3 class="no-num no-ref heading settled" id="normative"><span class="content">N
    <dd>Adam Rice; et al. <a href="https://streams.spec.whatwg.org/"><cite>Streams Standard</cite></a>. Living Standard. URL: <a href="https://streams.spec.whatwg.org/">https://streams.spec.whatwg.org/</a>
    <dt id="biblio-url">[URL]
    <dd>Anne van Kesteren. <a href="https://url.spec.whatwg.org/"><cite>URL Standard</cite></a>. Living Standard. URL: <a href="https://url.spec.whatwg.org/">https://url.spec.whatwg.org/</a>
+   <dt id="biblio-urlpattern">[URLPATTERN]
+   <dd>Ben Kelly; Jeremy Roman; 宍戸俊哉 (Shunya Shishido). <a href="https://urlpattern.spec.whatwg.org/"><cite>URL Pattern Standard</cite></a>. Living Standard. URL: <a href="https://urlpattern.spec.whatwg.org/">https://urlpattern.spec.whatwg.org/</a>
    <dt id="biblio-webidl">[WEBIDL]
    <dd>Edgar Chen; Timothy Gu. <a href="https://webidl.spec.whatwg.org/"><cite>Web IDL Standard</cite></a>. Living Standard. URL: <a href="https://webidl.spec.whatwg.org/">https://webidl.spec.whatwg.org/</a>
   </dl>
@@ -7444,6 +8035,40 @@ <h2 class="no-num no-ref heading settled" id="idl-index"><span class="content">I
   // Defined for the forward compatibility across the derived events
 };
 
+[<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
+<c- b>interface</c-> <a href="#installevent"><code><c- g>InstallEvent</c-></code></a> : <a data-link-type="idl-name" href="#extendableevent"><c- n>ExtendableEvent</c-></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-promise"><c- b>Promise</c-></a>&lt;<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-undefined"><c- b>undefined</c-></a>> <a class="idl-code" data-link-type="method" href="#dom-installevent-addroutes"><c- g>addRoutes</c-></a>((<a data-link-type="idl-name" href="#dictdef-routerrule"><c- n>RouterRule</c-></a> <c- b>or</c-> <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-routerrule"><c- n>RouterRule</c-></a>>) <a href="#dom-installevent-addroutes-rules-rules"><code><c- g>rules</c-></code></a>);
+};
+
+<c- b>dictionary</c-> <a href="#dictdef-routerrule"><code><c- g>RouterRule</c-></code></a> {
+  <c- b>required</c-> <a data-link-type="idl-name" href="#dictdef-routercondition"><c- n>RouterCondition</c-></a> <a data-type="RouterCondition " href="#dom-routerrule-condition"><code><c- g>condition</c-></code></a>;
+  <c- b>required</c-> <a data-link-type="idl-name" href="#typedefdef-routersource"><c- n>RouterSource</c-></a> <a data-type="RouterSource " href="#dom-routerrule-source"><code><c- g>source</c-></code></a>;
+};
+
+<c- b>dictionary</c-> <a href="#dictdef-routercondition"><code><c- g>RouterCondition</c-></code></a> {
+  <a data-link-type="idl-name" href="https://urlpattern.spec.whatwg.org/#typedefdef-urlpatterncompatible"><c- n>URLPatternCompatible</c-></a> <a data-type="URLPatternCompatible " href="#dom-routercondition-urlpattern"><code><c- g>urlPattern</c-></code></a>;
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-ByteString"><c- b>ByteString</c-></a> <a data-type="ByteString " href="#dom-routercondition-requestmethod"><code><c- g>requestMethod</c-></code></a>;
+  <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestmode"><c- n>RequestMode</c-></a> <a data-type="RequestMode " href="#dom-routercondition-requestmode"><code><c- g>requestMode</c-></code></a>;
+  <a data-link-type="idl-name" href="https://fetch.spec.whatwg.org/#requestdestination"><c- n>RequestDestination</c-></a> <a data-type="RequestDestination " href="#dom-routercondition-requestdestination"><code><c- g>requestDestination</c-></code></a>;
+  <a data-link-type="idl-name" href="#enumdef-runningstatus"><c- n>RunningStatus</c-></a> <a data-type="RunningStatus " href="#dom-routercondition-runningstatus"><code><c- g>runningStatus</c-></code></a>;
+
+  <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#idl-sequence"><c- b>sequence</c-></a>&lt;<a data-link-type="idl-name" href="#dictdef-routercondition"><c- n>RouterCondition</c-></a>> <a data-type="sequence<RouterCondition> " href="#dom-routercondition-or"><code><c- g>_or</c-></code></a>;
+};
+
+<c- b>typedef</c-> (<a data-link-type="idl-name" href="#dictdef-routersourcedict"><c- n>RouterSourceDict</c-></a> <c- b>or</c-> <a data-link-type="idl-name" href="#enumdef-routersourceenum"><c- n>RouterSourceEnum</c-></a>) <a href="#typedefdef-routersource"><code><c- g>RouterSource</c-></code></a>;
+
+<c- b>dictionary</c-> <a href="#dictdef-routersourcedict"><code><c- g>RouterSourceDict</c-></code></a> {
+  <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString"><c- b>DOMString</c-></a> <a data-type="DOMString " href="#dom-routersourcedict-cachename"><code><c- g>cacheName</c-></code></a>;
+};
+
+<c- b>enum</c-> <a href="#enumdef-runningstatus"><code><c- g>RunningStatus</c-></code></a> { <a href="#dom-runningstatus-running"><code><c- s>"running"</c-></code></a>, <a href="#dom-runningstatus-not-running"><code><c- s>"not-running"</c-></code></a> };
+<c- b>enum</c-> <a href="#enumdef-routersourceenum"><code><c- g>RouterSourceEnum</c-></code></a> {
+  <a href="#dom-routersourceenum-cache"><code><c- s>"cache"</c-></code></a>,
+  <a href="#dom-routersourceenum-fetch-event"><code><c- s>"fetch-event"</c-></code></a>,
+  <a href="#dom-routersourceenum-network"><code><c- s>"network"</c-></code></a>,
+  <a href="#dom-routersourceenum-race-network-and-fetch-handler"><code><c- s>"race-network-and-fetch-handler"</c-></code></a>
+};
+
 [<a class="idl-code" data-link-type="extended-attribute" href="https://webidl.spec.whatwg.org/#Exposed"><c- g>Exposed</c-></a>=<c- n>ServiceWorker</c->]
 <c- b>interface</c-> <a href="#fetchevent"><code><c- g>FetchEvent</c-></code></a> : <a data-link-type="idl-name" href="#extendableevent"><c- n>ExtendableEvent</c-></a> {
   <a href="#dom-fetchevent-fetchevent"><code><c- g>constructor</c-></code></a>(<a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString"><c- b>DOMString</c-></a> <a href="#dom-fetchevent-fetchevent-type-eventinitdict-type"><code><c- g>type</c-></code></a>, <a data-link-type="idl-name" href="#dictdef-fetcheventinit"><c- n>FetchEventInit</c-></a> <a href="#dom-fetchevent-fetchevent-type-eventinitdict-eventinitdict"><code><c- g>eventInitDict</c-></code></a>);
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 window.dfnpanelData['service-worker-client-discarded-flag'] = {"dfnID": "service-worker-client-discarded-flag", "url": "#service-worker-client-discarded-flag", "dfnText": "discarded flag", "refSections": [{"refs": [{"id": "ref-for-service-worker-client-discarded-flag"}, {"id": "ref-for-service-worker-client-discarded-flag\u2460"}], "title": "2.4. Service Worker Client"}, {"refs": [{"id": "ref-for-service-worker-client-discarded-flag\u2461"}], "title": "4.3.1. get(id)"}, {"refs": [{"id": "ref-for-service-worker-client-discarded-flag\u2462"}], "title": "4.3.2. matchAll(options)"}, {"refs": [{"id": "ref-for-service-worker-client-discarded-flag\u2463"}], "title": "4.3.4. claim()"}, {"refs": [{"id": "ref-for-service-worker-client-discarded-flag\u2464"}], "title": "Resolve Get Client Promise"}], "external": false};
 window.dfnpanelData['service-worker-client-origin'] = {"dfnID": "service-worker-client-origin", "url": "#service-worker-client-origin", "dfnText": "origin", "refSections": [{"refs": [{"id": "ref-for-service-worker-client-origin"}, {"id": "ref-for-service-worker-client-origin\u2460"}], "title": "2.5.2. The worker client case"}], "external": false};
 window.dfnpanelData['dfn-window-client'] = {"dfnID": "dfn-window-client", "url": "#dfn-window-client", "dfnText": "window client", "refSections": [{"refs": [{"id": "ref-for-dfn-window-client"}, {"id": "ref-for-dfn-window-client\u2460"}, {"id": "ref-for-dfn-window-client\u2461"}, {"id": "ref-for-dfn-window-client\u2462"}, {"id": "ref-for-dfn-window-client\u2463"}, {"id": "ref-for-dfn-window-client\u2464"}, {"id": "ref-for-dfn-window-client\u2465"}], "title": "2.5.1. The window client case"}, {"refs": [{"id": "ref-for-dfn-window-client\u2466"}, {"id": "ref-for-dfn-window-client\u2467"}], "title": "2.5. Control and Use"}, {"refs": [{"id": "ref-for-dfn-window-client\u2468"}], "title": "4.2.4. type"}, {"refs": [{"id": "ref-for-dfn-window-client\u2460\u24ea"}, {"id": "ref-for-dfn-window-client\u2460\u2460"}, {"id": "ref-for-dfn-window-client\u2460\u2461"}], "title": "4.3.2. matchAll(options)"}, {"refs": [{"id": "ref-for-dfn-window-client\u2460\u2462"}, {"id": "ref-for-dfn-window-client\u2460\u2463"}], "title": "Resolve Get Client Promise"}], "external": false};
@@ -9710,9 +10346,9 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
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 window.dfnpanelData['dfn-control'] = {"dfnID": "dfn-control", "url": "#dfn-control", "dfnText": "controlled", "refSections": [{"refs": [{"id": "ref-for-dfn-control"}], "title": "2.5. Control and Use"}, {"refs": [{"id": "ref-for-dfn-control\u2460"}], "title": "3.2.9. unregister()"}, {"refs": [{"id": "ref-for-dfn-control\u2461"}], "title": "3.5. Events"}, {"refs": [{"id": "ref-for-dfn-control\u2462"}], "title": "Service Worker Script Response"}], "external": false};
 window.dfnpanelData['dfn-use'] = {"dfnID": "dfn-use", "url": "#dfn-use", "dfnText": "using", "refSections": [{"refs": [{"id": "ref-for-dfn-use"}], "title": "3.5. Events"}, {"refs": [{"id": "ref-for-dfn-use\u2460"}], "title": "4.1.4. skipWaiting()"}, {"refs": [{"id": "ref-for-dfn-use\u2461"}], "title": "Activate"}, {"refs": [{"id": "ref-for-dfn-use\u2462"}], "title": "Try Activate"}, {"refs": [{"id": "ref-for-dfn-use\u2463"}], "title": "Handle Fetch"}, {"refs": [{"id": "ref-for-dfn-use\u2464"}, {"id": "ref-for-dfn-use\u2465"}], "title": "Handle Service Worker Client Unload"}, {"refs": [{"id": "ref-for-dfn-use\u2466"}], "title": "Unregister"}, {"refs": [{"id": "ref-for-dfn-use\u2467"}], "title": "Try Clear Registration"}], "external": false};
-window.dfnpanelData['dfn-handle-fetch-task-source'] = {"dfnID": "dfn-handle-fetch-task-source", "url": "#dfn-handle-fetch-task-source", "dfnText": "handle fetch task source", "refSections": [{"refs": [{"id": "ref-for-dfn-handle-fetch-task-source"}], "title": "2.3. Service Worker Registration"}, {"refs": [{"id": "ref-for-dfn-handle-fetch-task-source\u2460"}, {"id": "ref-for-dfn-handle-fetch-task-source\u2461"}], "title": "Terminate Service Worker"}, {"refs": [{"id": "ref-for-dfn-handle-fetch-task-source\u2462"}], "title": "Handle Fetch"}], "external": false};
+window.dfnpanelData['dfn-handle-fetch-task-source'] = {"dfnID": "dfn-handle-fetch-task-source", "url": "#dfn-handle-fetch-task-source", "dfnText": "handle fetch task source", "refSections": [{"refs": [{"id": "ref-for-dfn-handle-fetch-task-source"}], "title": "2.3. Service Worker Registration"}, {"refs": [{"id": "ref-for-dfn-handle-fetch-task-source\u2460"}, {"id": "ref-for-dfn-handle-fetch-task-source\u2461"}], "title": "Terminate Service Worker"}, {"refs": [{"id": "ref-for-dfn-handle-fetch-task-source\u2462"}], "title": "Create Fetch Event and Dispatch"}], "external": false};
 window.dfnpanelData['dfn-handle-functional-event-task-source'] = {"dfnID": "dfn-handle-functional-event-task-source", "url": "#dfn-handle-functional-event-task-source", "dfnText": "handle functional event task source", "refSections": [{"refs": [{"id": "ref-for-dfn-handle-functional-event-task-source"}], "title": "2.3. Service Worker Registration"}, {"refs": [{"id": "ref-for-dfn-handle-functional-event-task-source\u2460"}, {"id": "ref-for-dfn-handle-functional-event-task-source\u2461"}], "title": "Terminate Service Worker"}, {"refs": [{"id": "ref-for-dfn-handle-functional-event-task-source\u2462"}], "title": "Fire Functional Event"}], "external": false};
-window.dfnpanelData['serviceworker'] = {"dfnID": "serviceworker", "url": "#serviceworker", "dfnText": "ServiceWorker", "refSections": [{"refs": [{"id": "ref-for-serviceworker"}], "title": "2.1.1. Lifetime"}, {"refs": [{"id": "ref-for-serviceworker\u2460"}, {"id": "ref-for-serviceworker\u2461"}, {"id": "ref-for-serviceworker\u2462"}, {"id": "ref-for-serviceworker\u2463"}, {"id": "ref-for-serviceworker\u2464"}, {"id": "ref-for-serviceworker\u2465"}], "title": "3.1. ServiceWorker"}, {"refs": [{"id": "ref-for-serviceworker\u2466"}, {"id": "ref-for-serviceworker\u2467"}, {"id": "ref-for-serviceworker\u2468"}], "title": "3.1.1. Getting ServiceWorker instances"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u24ea"}], "title": "3.1.6. Event handler"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2460"}, {"id": "ref-for-serviceworker\u2460\u2461"}, {"id": "ref-for-serviceworker\u2460\u2462"}], "title": "3.2. ServiceWorkerRegistration"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2463"}], "title": "3.2.2. installing"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2464"}], "title": "3.2.3. waiting"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2465"}], "title": "3.2.4. active"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2466"}], "title": "3.4. ServiceWorkerContainer"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2467"}, {"id": "ref-for-serviceworker\u2460\u2468"}], "title": "3.5. Events"}, {"refs": [{"id": "ref-for-serviceworker\u2461\u24ea"}, {"id": "ref-for-serviceworker\u2461\u2460"}], "title": "4.1. ServiceWorkerGlobalScope"}, {"refs": [{"id": "ref-for-serviceworker\u2461\u2461"}, {"id": "ref-for-serviceworker\u2461\u2462"}], "title": "4.6. ExtendableMessageEvent"}], "external": false};
+window.dfnpanelData['serviceworker'] = {"dfnID": "serviceworker", "url": "#serviceworker", "dfnText": "ServiceWorker", "refSections": [{"refs": [{"id": "ref-for-serviceworker"}], "title": "2.1.1. Lifetime"}, {"refs": [{"id": "ref-for-serviceworker\u2460"}, {"id": "ref-for-serviceworker\u2461"}, {"id": "ref-for-serviceworker\u2462"}, {"id": "ref-for-serviceworker\u2463"}, {"id": "ref-for-serviceworker\u2464"}, {"id": "ref-for-serviceworker\u2465"}], "title": "3.1. ServiceWorker"}, {"refs": [{"id": "ref-for-serviceworker\u2466"}, {"id": "ref-for-serviceworker\u2467"}, {"id": "ref-for-serviceworker\u2468"}], "title": "3.1.1. Getting ServiceWorker instances"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u24ea"}], "title": "3.1.6. Event handler"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2460"}, {"id": "ref-for-serviceworker\u2460\u2461"}, {"id": "ref-for-serviceworker\u2460\u2462"}], "title": "3.2. ServiceWorkerRegistration"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2463"}], "title": "3.2.2. installing"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2464"}], "title": "3.2.3. waiting"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2465"}], "title": "3.2.4. active"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2466"}], "title": "3.4. ServiceWorkerContainer"}, {"refs": [{"id": "ref-for-serviceworker\u2460\u2467"}, {"id": "ref-for-serviceworker\u2460\u2468"}], "title": "3.5. Events"}, {"refs": [{"id": "ref-for-serviceworker\u2461\u24ea"}, {"id": "ref-for-serviceworker\u2461\u2460"}], "title": "4.1. ServiceWorkerGlobalScope"}, {"refs": [{"id": "ref-for-serviceworker\u2461\u2461"}, {"id": "ref-for-serviceworker\u2461\u2462"}], "title": "4.7. ExtendableMessageEvent"}], "external": false};
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+window.dfnpanelData['serviceworkerglobalscope-race-response-map'] = {"dfnID": "serviceworkerglobalscope-race-response-map", "url": "#serviceworkerglobalscope-race-response-map", "dfnText": "race response map", "refSections": [{"refs": [{"id": "ref-for-serviceworkerglobalscope-race-response-map"}, {"id": "ref-for-serviceworkerglobalscope-race-response-map\u2460"}, {"id": "ref-for-serviceworkerglobalscope-race-response-map\u2461"}], "title": "Create Fetch Event and Dispatch"}, {"refs": [{"id": "ref-for-serviceworkerglobalscope-race-response-map\u2462"}], "title": "Lookup Race Response"}], "external": false};
+window.dfnpanelData['dfn-race-response'] = {"dfnID": "dfn-race-response", "url": "#dfn-race-response", "dfnText": "race response", "refSections": [{"refs": [{"id": "ref-for-dfn-race-response"}], "title": "4.1. ServiceWorkerGlobalScope"}, {"refs": [{"id": "ref-for-dfn-race-response\u2460"}, {"id": "ref-for-dfn-race-response\u2461"}], "title": "Handle Fetch"}, {"refs": [{"id": "ref-for-dfn-race-response\u2462"}], "title": "Create Fetch Event and Dispatch"}], "external": false};
+window.dfnpanelData['race-response-value'] = {"dfnID": "race-response-value", "url": "#race-response-value", "dfnText": "value", "refSections": [{"refs": [{"id": "ref-for-race-response-value"}, {"id": "ref-for-race-response-value\u2460"}, {"id": "ref-for-race-response-value\u2461"}, {"id": "ref-for-race-response-value\u2462"}], "title": "Handle Fetch"}, {"refs": [{"id": "ref-for-race-response-value\u2463"}, {"id": "ref-for-race-response-value\u2464"}, {"id": "ref-for-race-response-value\u2465"}, {"id": "ref-for-race-response-value\u2466"}], "title": "Create Fetch Event and Dispatch"}, {"refs": [{"id": "ref-for-race-response-value\u2467"}, {"id": "ref-for-race-response-value\u2468"}, {"id": "ref-for-race-response-value\u2460\u24ea"}], "title": "Lookup Race Response"}], "external": false};
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@@ -9778,7 +10417,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
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@@ -9931,7 +10599,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
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