[Bug 20397] [Custom]: Consider changing elementupgrade to a mutation observer

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20397

--- Comment #4 from Olli Pettay <bugs@pettay.fi> ---
Replacements are DOM mutations and of course there will be a mutation record
for each node removal or insertion. They are just normal DOM mutations.
But upgrade itself isn't a DOM mutation.

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Received on Friday, 14 December 2012 23:14:18 UTC