fix: correct access to crossOrigin attribute (#12023)

Author: benmccann

packages/vite/src/node/plugins/modulePreloadPolyfill.ts

@@ -78,13 +78,13 @@ function polyfill() {
     }
   }).observe(document, { childList: true, subtree: true })
 
-  function getFetchOpts(script: any) {
+  function getFetchOpts(link: any) {
     const fetchOpts = {} as any
-    if (script.integrity) fetchOpts.integrity = script.integrity
-    if (script.referrerpolicy) fetchOpts.referrerPolicy = script.referrerpolicy
-    if (script.crossorigin === 'use-credentials')
+    if (link.integrity) fetchOpts.integrity = link.integrity
+    if (link.referrerPolicy) fetchOpts.referrerPolicy = link.referrerPolicy
+    if (link.crossOrigin === 'use-credentials')
       fetchOpts.credentials = 'include'
-    else if (script.crossorigin === 'anonymous') fetchOpts.credentials = 'omit'
+    else if (link.crossOrigin === 'anonymous') fetchOpts.credentials = 'omit'
     else fetchOpts.credentials = 'same-origin'
     return fetchOpts
   }