Bug 1122161 - Redirected channels should respect skip service worker flag. r=nsm

--HG--
extra : rebase_source : 959228846310fa8b44a74e8378f24c14a4f278c0

dom/tests/mochitest/fetch/mochitest.ini

@@ -27,11 +27,11 @@ skip-if = buildapp == 'b2g' # Bug 1137683
 skip-if = buildapp == 'b2g' # Bug 1137683
 [test_fetch_basic_http.html]
 [test_fetch_basic_http_sw_reroute.html]
-skip-if = true # Bug 1122161, need proper support for redirects
+skip-if = true # Bug 1170937, need fully support for redirects
 #skip-if = buildapp == 'b2g' # Bug 1137683
 [test_fetch_cors.html]
 [test_fetch_cors_sw_reroute.html]
-skip-if = true # Bug 1122161, need proper support for redirects
+skip-if = true # Bug 1170937, need fully support for redirects
 #skip-if = buildapp == 'b2g' # Bug 1137683
 [test_formdataparsing.html]
 [test_formdataparsing_sw_reroute.html]

dom/workers/test/serviceworkers/fetch/fetch_tests.js

@@ -140,6 +140,25 @@ fetchXHR('http://example.com/tests/dom/base/test/file_CrossSiteXHR_server.sjs?st
   finish();
 });
 
+// Test that when the page fetches a url the controlling SW forces a redirect to
+// another location. This other location fetch should also be intercepted by
+// the SW.
+fetchXHR('something.txt', function(xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(xhr.responseText == "something else response body", "load should have something else");
+  finish();
+});
+
+// Test fetch will internally get it's SkipServiceWorker flag set. The request is
+// made from the SW through fetch(). fetch() fetches a server-side JavaScript
+// file that force a redirect. The redirect location fetch does not go through
+// the SW.
+fetchXHR('redirect_serviceworker.sjs', function(xhr) {
+  my_ok(xhr.status == 200, "load should be successful");
+  my_ok(xhr.responseText == "// empty worker, always succeed!\n", "load should have redirection content");
+  finish();
+});
+
 expectAsyncResult();
 fetch('http://example.com/tests/dom/base/test/file_CrossSiteXHR_server.sjs?status=200&allowOrigin=*')
 .then(function(res) {

dom/workers/test/serviceworkers/fetch_event_worker.js

@@ -190,4 +190,20 @@ onfetch = function(ev) {
       return new Response(body + body);
     }));
   }
-}
+
+  else if (ev.request.url.includes('something.txt')) {
+    ev.respondWith(Response.redirect('fetch/somethingelse.txt'));
+  }
+
+  else if (ev.request.url.includes('somethingelse.txt')) {
+    ev.respondWith(new Response('something else response body', {}));
+  }
+
+  else if (ev.request.url.includes('redirect_serviceworker.sjs')) {
+    // The redirect_serviceworker.sjs server-side JavaScript file redirects to
+    // 'http://mochi.test:8888/tests/dom/workers/test/serviceworkers/worker.js'
+    // The redirected fetch should not go through the SW since the original
+    // fetch was initiated from a SW.
+    ev.respondWith(fetch('redirect_serviceworker.sjs'));
+  }
+};