[Bug 22759] It is not clear what happens to the existing transient observers when MutationObserver.observe is called

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22759

--- Comment #1 from Rafael Weinstein <rafaelw@chromium.org> ---
Blink follows gecko in that when observe() replaces an earlier observation, the
connected transient observers are cleared.

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Received on Monday, 22 July 2013 23:48:07 UTC