Comment 41 for bug 747197

Created attachment 121701
Work in progress

Patch is work in progress but it attempts to fix up style properties that
typically contain an url(), e.g. background-image. I have most of the rule
searching and url extraction / fixup down but I have to clean up the node
cloning function.

I also have a horrible feeling that just asking a node for it's inline syle
drags a bunch of -moz styles into existence even if they weren't there to start
with. This means you get a mess of extra styles in the output document. I'll
have to examine this issue a bit more.