Re: [csswg-drafts] [css-overscroll-behavior] Control behavior based upon user scrollability and for chaining/bubbling up from elements not being at a scroll boundary, like the supported of overscroll of overflow:hidden elements not at scroll boundary (#3349)

@chengyin Here is the current chrome *bug in chromes own settings view. And I think this is sometimes a desired behavior. When there is no user scrollable overflow on a scroll container, you might not want to inhibit scroll chaining.
![Screen Recording 2019-06-10 at 08 13 PM](https://user-images.githubusercontent.com/181364/59234866-a0d5f600-8bbc-11e9-82a4-25a63cce97ec.gif)
This could feel strange if when the screen is large enough, scrolling with your mouse in the lower left area would move the main settings scroller, but not when your mouse is in the upper left, while the sidenav isn't actually scrollable.

Similar to how a scroll container needs to have user scrollable overflow to participate in the "sequential focus navigation order", I think it's valuable to offer configuration that can key off scrollability.

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Received on Tuesday, 11 June 2019 00:29:09 UTC