myxml= <a xmlns:a="uri.1"> <b xmlns:a="uri.2"> <c><d/></c> </b> </a>; now myxml.b, myxml.b.c gives ==> <b xmlns:a="uri.2" xmlns:a="uri.1"> <c> <d/> </c> </b> and <c xmlns:a="uri.2" xmlns:a="uri.1"> <d/> </c> I expected ==> <b xmlns:a="uri.2"> <c> <d/> </c> </b> and <c xmlns:a="uri.2"> <d/> </c> PS: 1. I have a JS fix for this, so code fix is not urgent.

is this related to Bug 292863 or is this same prefix for different namespace valid in xml?

E4X will be removed again from Spidermonkey (bug 788293)