Adding event listener on parent during bubbling event dispatch should not fire parent At least FireFox and IE don't allow this. See example. Even if it's decided that this "test" is wrong, the inverse test should be added to the repository.
Created attachment 13289 [details] test case demonstrates the bug. Compare behavior between Firefox, IE and Safari.
Firefox 3 says "FAILURE", too. Eric, would you be willing to prepare the test for landing?