diff --git a/dom/workers/test/browser.ini b/dom/workers/test/browser.ini
index ae1e27d13a70..c9fd854b541a 100644
--- a/dom/workers/test/browser.ini
+++ b/dom/workers/test/browser.ini
@@ -5,7 +5,6 @@ support-files =
   frame_script.js
   head.js
   !/dom/base/test/file_empty.html
-  !/dom/base/test/file_bug945152.jar
 
 [browser_bug1047663.js]
 [browser_bug1104623.js]
diff --git a/dom/workers/test/bug1063538.sjs b/dom/workers/test/bug1063538.sjs
new file mode 100644
index 000000000000..5d2570747be7
--- /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.
+}
+
diff --git a/dom/workers/test/bug1063538_worker.js b/dom/workers/test/bug1063538_worker.js
index dc53dd2891aa..caf03af0044f 100644
--- a/dom/workers/test/bug1063538_worker.js
+++ b/dom/workers/test/bug1063538_worker.js
@@ -3,7 +3,7 @@
  * 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;
 
@@ -20,6 +20,6 @@ xhr.onprogress = function(e) {
 };
 
 onmessage = function(e) {
-  xhr.open("GET", gJar, true);
+  xhr.open("GET", gURL, true);
   xhr.send();
 }
diff --git a/dom/workers/test/mochitest.ini b/dom/workers/test/mochitest.ini
index 087d774a2908..95f9baf9821e 100644
--- a/dom/workers/test/mochitest.ini
+++ b/dom/workers/test/mochitest.ini
@@ -94,7 +94,6 @@ support-files =
   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
diff --git a/dom/workers/test/test_bug1063538.html b/dom/workers/test/test_bug1063538.html
index 7c32b8ed3bcf..7d20bdd5f10a 100644
--- a/dom/workers/test/test_bug1063538.html
+++ b/dom/workers/test/test_bug1063538.html
@@ -38,9 +38,7 @@ function runTest() {
 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>