Re: [csswg-drafts] HTMLElement.prototype.offsetParent leaks a node inside a shadow tree

If we change the behavior of `offserParent`, we should add 
`composedOffsetParent`-ish because that is what most developers want. 
Even though it might be emulated, we don't want each developers to 
write boilerplate code in JS. The platform should return the result 
much faster because it knows the layout tree.

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Received on Friday, 6 January 2017 06:30:27 UTC