[Bug 20131] [MutationObservers] Unclear whether unique record instances are required in 5.3.2 "Queuing a mutation record"

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20131

--- Comment #12 from Rafael Weinstein <rafaelw@chromium.org> ---
In your example, neither are shared between A and B. A sees |record| and B sees
|recordWithOldValue|.

But in general, both are shared. All observers who requested oldValue see the
same |recordWithOldValue| and all observers who did not see the same |record|.

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Received on Wednesday, 28 November 2012 22:08:30 UTC