[flutter_tools] Prevent web ServiceWorker from modifying fetch requests. (#50312)

packages/flutter_tools/lib/src/build_system/targets/web.dart

diff --git a/packages/flutter_tools/lib/src/build_system/targets/web.dart b/packages/flutter_tools/lib/src/build_system/targets/web.dart
index 3bd1bc8..9c1738d 100644
--- a/packages/flutter_tools/lib/src/build_system/targets/web.dart
+++ b/packages/flutter_tools/lib/src/build_system/targets/web.dart
@@ -358,9 +358,7 @@
         if (response) {
           return response;
         }
-        return fetch(event.request, {
-          credentials: 'include'
-        });
+        return fetch(event.request);
       })
   );
 });