Re: [csswg-drafts] [css-overflow] body overflow propagation is less defined than it was in CSS 2.1

For what it's worth, Firefox will be shipping the CSS2.1 behavior next month.  I believe this behavior makes the most sense, because it matches the definitions cssom-view uses for https://drafts.csswg.org/cssom-view/#the-html-body-element and interacts sanely with https://drafts.csswg.org/cssom-view/#potentially-scrollable

Otherwise, the CSSOM definition of "potentially scrollable" would not match what's actually going on with overflow style propagation to viewport.  In other words, we could have a situation in which the `<body>` has scrollbars (separate from the viewport) but is not "potentially scrollable" from the cssom-view point of view.

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Received on Thursday, 14 December 2017 05:14:25 UTC