Bug 491230 - assignment used when comparison wanted in /dom/src/threads/test/test_throwingOnerror.html; r=bent.mozilla

dom/src/threads/test/test_throwingOnerror.html

@@ -24,7 +24,7 @@ Tests of DOM Worker Threads
   worker.onerror = function(event) {
     var found = false;
     for (var index in errors) {
-      if (event.message = "uncaught exception: " + errors[index]) {
+      if (event.message == "uncaught exception: " + errors[index]) {
         errors.splice(index, 1);
         found = true;
         break;