fix: fix compare rel attribute

fix: add changeset

.changeset/gentle-brooms-invite.md

@@ -0,0 +1,5 @@
+---
+'@module-federation/sdk': patch
+---
+
+fix(sdk): Fix duplicate css, change ref attr to rel

packages/sdk/__tests__/dom.spec.ts

@@ -175,7 +175,7 @@ describe('createLink', () => {
     expect(needAttach).toBe(true);
   });
 
-  xit('should reuse an existing link element if one exists', () => {
+  it('should reuse an existing link element if one exists', () => {
     const url = 'https://example.com/script.js';
     const cb = jest.fn();
     document.head.innerHTML = `<link href="${url}" rel="preload" as="script">`;

packages/sdk/src/dom.ts

@@ -155,11 +155,11 @@ export function createLink(info: {
   for (let i = 0; i < links.length; i++) {
     const l = links[i];
     const linkHref = l.getAttribute('href');
-    const linkRef = l.getAttribute('ref');
+    const linkRel = l.getAttribute('rel');
     if (
       linkHref &&
       isStaticResourcesEqual(linkHref, info.url) &&
-      linkRef === info.attrs['ref']
+      linkRel === info.attrs['rel']
     ) {
       link = l;
       needAttach = false;