fix: dont override content-length header when doing html injection

netlify · Jan 13, 2025 · 5ef70f4 · 5ef70f4
1 parent 97ee472
commit 5ef70f4
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/utils/proxy.ts b/src/utils/proxy.ts
@@ -703,9 +703,11 @@ const initializeProxy = async function ({
 
       if (htmlInjections) {
         responseBody = await injectHtml(responseBody, proxyRes, htmlInjections)
-        proxyResHeaders = {
-          ...proxyResHeaders,
-          'content-length': String(responseBody.byteLength),
+        if (!proxyResHeaders['transfer-encoding']) {
+          proxyResHeaders = {
+            ...proxyResHeaders,
+            'content-length': String(responseBody.byteLength),
+          }
         }
       }