Created attachment 561705 [details] [diff] [review] Patch The test for Bug 502959 expects that if it sets and then retrieves the onreadystatechange event handler on an XHR object that it will receive a wrapped nsIDOMEventListener. After Bug 687332 this is no longer the case. Wrappers scare me, so asking for r+ on this test change to make sure it's still testing what it should be.
Comment on attachment 561705 [details] [diff] [review] Patch So, now that I understand what this test does I think I know how to continue testing that functionality.
Created attachment 562552 [details] [diff] [review] Patch What do you know, dom traversal *is* actually good for something!