Bug 1184967 P3 Switch mochitest redirect tests back to returning a CORS Response. r=nsm

dom/workers/test/serviceworkers/fetch/origin/https/origin_test.js

@@ -4,8 +4,7 @@ self.addEventListener("install", function(event) {
   event.waitUntil(
     self.caches.open("origin-cache")
       .then(c => {
-        return c.add(new Request(prefix + 'index-https.sjs',
-                                 { redirect: 'manual' }));
+        return c.add(prefix + 'index-https.sjs');
       })
   );
 });

dom/workers/test/serviceworkers/fetch/origin/https/realindex.html^headers^

@@ -0,0 +1 @@
+Access-Control-Allow-Origin: https://example.com

dom/workers/test/serviceworkers/fetch/origin/origin_test.js

@@ -6,10 +6,8 @@ self.addEventListener("install", function(event) {
       .then(c => {
         return Promise.all(
           [
-            c.add(new Request(prefix + 'index.sjs',
-                              { redirect: 'manual' } )),
-            c.add(new Request(prefix + 'index-to-https.sjs',
-                              { redirect: 'manual' } ))
+            c.add(prefix + 'index.sjs'),
+            c.add(prefix + 'index-to-https.sjs')
           ]
         );
       })

dom/workers/test/serviceworkers/fetch/origin/realindex.html^headers^

@@ -0,0 +1 @@
+Access-Control-Allow-Origin: http://mochi.test:8888

dom/workers/test/serviceworkers/mochitest.ini

@@ -53,11 +53,13 @@ support-files =
   fetch/origin/index.sjs
   fetch/origin/index-to-https.sjs
   fetch/origin/realindex.html
+  fetch/origin/realindex.html^headers^
   fetch/origin/register.html
   fetch/origin/unregister.html
   fetch/origin/origin_test.js
   fetch/origin/https/index-https.sjs
   fetch/origin/https/realindex.html
+  fetch/origin/https/realindex.html^headers^
   fetch/origin/https/register.html
   fetch/origin/https/unregister.html
   fetch/origin/https/origin_test.js