Expose URL fragment to request but not response.

Upstreamed from https://bugzilla.mozilla.org/show_bug.cgi?id=1264178

service-workers/service-worker/fetch-event.https.html

@@ -419,14 +419,13 @@
       .then(function(frame) {
           assert_equals(
             frame.contentDocument.body.textContent,
-            'Fragment Not Found',
-            'Service worker should not expose URL fragments.');
+            'Fragment Found :' + fragment,
+            'Service worker should expose URL fragments in request.');
           frame.remove();
           return service_worker_unregister_and_done(t, scope);
         })
       .catch(unreached_rejection(t));
   }, 'Service Worker must not expose FetchEvent URL fragments.');
-
 async_test(function(t) {
     var scope = 'resources/simple.html?cache';
     var frame;

service-workers/service-worker/resources/fetch-event-test-worker.js

@@ -80,21 +80,19 @@ function handleUsedCheck(event) {
         'bodyUsed: ' + lastResponseForUsedCheck.bodyUsed));
   }
 }
-
 function handleFragmentCheck(event) {
   var body;
   if (event.request.url.indexOf('#') === -1) {
     body = 'Fragment Not Found';
   } else {
-    body = 'Fragment Found';
+    body = 'Fragment Found :' +
+           event.request.url.substring(event.request.url.indexOf('#'));
   }
   event.respondWith(new Response(body));
 }
-
 function handleCache(event) {
   event.respondWith(new Response(event.request.cache));
 }
-
 function handleEventSource(event) {
   if (event.request.mode === 'navigate') {
     return;