5 files changed, 4 insertions, 19 deletions
diff --git a/dom/security/test/csp/file_child-src_worker-redirect.html b/dom/security/test/csp/file_child-src_worker-redirect.html
index 188f173b8..b0029935c 100644
--- a/dom/security/test/csp/file_child-src_worker-redirect.html
+++ b/dom/security/test/csp/file_child-src_worker-redirect.html
@@ -23,11 +23,8 @@
           );
 
       worker.onerror = function(error) {
-        var msg = error.message;
-        if (msg.match(/^NetworkError/) || msg.match(/Failed to load worker script/)) {
-          // this means CSP blocked it
-          msg = "blocked";
-        }
+        // this means CSP blocked it
+        var msg = !("message" in error) ? "blocked" : e.message;
         window.parent.postMessage({id:page_id, message:msg}, 'http://mochi.test:8888');
         error.preventDefault();
       };
diff --git a/dom/security/test/general/test_block_script_wrong_mime.html b/dom/security/test/general/test_block_script_wrong_mime.html
index f4da9c577..34d4b621b 100644
--- a/dom/security/test/general/test_block_script_wrong_mime.html
+++ b/dom/security/test/general/test_block_script_wrong_mime.html
@@ -53,9 +53,6 @@ function testWorker([mime, shouldLoad]) {
     };
     worker.onerror = (error) => {
       ok(!shouldLoad, `worker with wrong mime '${mime}' should be blocked`);
-      let msg = error.message;
-      ok(msg.match(/^NetworkError/) || msg.match(/Failed to load worker script/),
-         "should gets correct error message");
       error.preventDefault();
       resolve();
     }
@@ -74,9 +71,6 @@ function testWorkerImportScripts([mime, shouldLoad]) {
     };
     worker.onerror = (error) => {
       ok(!shouldLoad, `worker/importScripts with wrong mime '${mime}' should be blocked`);
-      let msg = error.message;
-      ok(msg.match(/^NetworkError/) || msg.match(/Failed to load worker script/),
-         "should gets correct error message");
       error.preventDefault();
       resolve();
     }
diff --git a/dom/workers/test/test_404.html b/dom/workers/test/test_404.html
index e2e83a35e..15e5ded68 100644
--- a/dom/workers/test/test_404.html
+++ b/dom/workers/test/test_404.html
@@ -25,7 +25,6 @@ Tests of DOM Worker Threads
 
   worker.onerror = function(event) {
     is(event.target, worker);
-    is(event.message, 'NetworkError: Failed to load worker script at "nonexistent_worker.js"');
     event.preventDefault();
     SimpleTest.finish();
   };
diff --git a/dom/workers/test/test_bug1036484.html b/dom/workers/test/test_bug1036484.html
index 17b9d490f..49c31bbc9 100644
--- a/dom/workers/test/test_bug1036484.html
+++ b/dom/workers/test/test_bug1036484.html
@@ -25,7 +25,6 @@ function test(script) {
 
   worker.onerror = function(event) {
     is(event.target, worker);
-    ok(event.message.startsWith("NetworkError: Failed to load worker script"))
     event.preventDefault();
     runTests();
   };
diff --git a/dom/workers/test/test_loadError.html b/dom/workers/test/test_loadError.html
index dc109b796..b9a215d11 100644
--- a/dom/workers/test/test_loadError.html
+++ b/dom/workers/test/test_loadError.html
@@ -13,15 +13,13 @@
 <script class="testbody" type="text/javascript">
 "use strict";
 
-var loadErrorMessage = 'SecurityError: Failed to load worker script at "about:blank"';
-
 function nextTest() {
   (function(){
     function workerfunc() {
       var subworker = new Worker("about:blank");
       subworker.onerror = function(e) {
         e.preventDefault();
-        postMessage(e.message);
+        postMessage("ERROR");
       }
     }
     var b = new Blob([workerfunc+'workerfunc();']);
@@ -37,7 +35,7 @@ function nextTest() {
         return;
       }
       w.onmessage = function(e) {
-        is(e.data, loadErrorMessage,
+        is(e.data, "ERROR",
            "Should catch the error when loading inner script");
         if (++i < 2) callworker(i);
         else SimpleTest.finish();
@@ -54,8 +52,6 @@ try {
   var worker = new Worker("about:blank");
   worker.onerror = function(e) {
     e.preventDefault();
-    is(e.message, loadErrorMessage,
-       "Should get the right error from the toplevel script");
     nextTest();
   }