--- a/dom/workers/test/browser.ini
+++ b/dom/workers/test/browser.ini
@@ -1,12 +1,11 @@
 [DEFAULT]
 support-files =
   bug1047663_tab.html
   bug1047663_worker.sjs
   frame_script.js
   head.js
   !/dom/base/test/file_empty.html
-  !/dom/base/test/file_bug945152.jar
 
 [browser_bug1047663.js]
 [browser_bug1104623.js]
 run-if = buildapp == 'browser'

new file mode 100644
--- /dev/null
+++ b/dom/workers/test/bug1063538.sjs
@@ -0,0 +1,6 @@
+function handleRequest(request, response) {
+  response.processAsync();
+  response.write("Hello");
+  setTimeout(function() { response.finish(); }, 100000); // wait 100 seconds.
+}
+

--- a/dom/workers/test/bug1063538_worker.js
+++ b/dom/workers/test/bug1063538_worker.js
@@ -1,25 +1,25 @@
 /**
  * Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
-var gJar = "jar:http://example.org/tests/dom/base/test/file_bug945152.jar!/data_big.txt";
+var gURL = "http://example.org/tests/dom/workers/test/bug1063538.sjs";
 var xhr = new XMLHttpRequest({mozAnon: true, mozSystem: true});
 var progressFired = false;
 
 xhr.onloadend = function(e) {
   postMessage({type: 'finish', progressFired: progressFired });
   self.close();
 };
 
 xhr.onprogress = function(e) {
   if (e.loaded > 0) {
     progressFired = true;
     xhr.abort();
   }
 };
 
 onmessage = function(e) {
-  xhr.open("GET", gJar, true);
+  xhr.open("GET", gURL, true);
   xhr.send();
 }

--- a/dom/workers/test/mochitest.ini
+++ b/dom/workers/test/mochitest.ini
@@ -89,17 +89,16 @@ support-files =
   worker_referrer.js
   importScripts_3rdParty_worker.js
   worker_bug1278777.js
   worker_setTimeoutWith0.js
   worker_bug1301094.js
   script_createFile.js
   worker_suspended.js
   window_suspended.html
-  !/dom/base/test/file_bug945152.jar
   !/dom/notification/test/mochitest/MockServices.js
   !/dom/notification/test/mochitest/NotificationTest.js
   !/dom/xhr/tests/relativeLoad_import.js
   !/dom/xhr/tests/relativeLoad_worker.js
   !/dom/xhr/tests/relativeLoad_worker2.js
   !/dom/xhr/tests/subdir/relativeLoad_sub_worker.js
   !/dom/xhr/tests/subdir/relativeLoad_sub_worker2.js
   !/dom/xhr/tests/subdir/relativeLoad_sub_import.js

--- a/dom/workers/test/test_bug1063538.html
+++ b/dom/workers/test/test_bug1063538.html
@@ -33,17 +33,15 @@ function runTest() {
   };
 
   worker.postMessage(true);
 }
 
 SimpleTest.waitForExplicitFinish();
 
 addLoadEvent(function() {
-  SpecialPowers.pushPrefEnv({"set": [["network.jar.block-remote-files", false]]}, function() {
-    SpecialPowers.pushPermissions([{'type': 'systemXHR', 'allow': true, 'context': document}], runTest);
-  });
+  SpecialPowers.pushPermissions([{'type': 'systemXHR', 'allow': true, 'context': document}], runTest);
 });
 
 </script>
 </pre>
 </body>
 </html>