[Bug 20246] Provide a system to observe nodes entering and leaving the viewport

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20246

--- Comment #12 from Chris Rebert <w3bugs@chrisrebert.com> ---
Seems like https://wicg.github.io/IntersectionObserver/ should take care of
this?

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Received on Sunday, 28 August 2016 04:24:13 UTC