[Webkit-unassigned] [Bug 236390] iPad: PointerEvents stop getting sent to WebView after a 5-finger gesture

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236390

--- Comment #15 from ae at seven.systems ---
After a day of investigation in the WebKit source and random playing around, I found out that the bug does NOT happen if the HTML element which has the PointerEvent listener(s) does NOT overlap with the bottom system gesture area, eg:

- a div element with height calc(100vh - 50px): triggers the bug
- a div element with height calc(100vh - 190px): does NOT trigger the bug

So the problem must be that the system gesture recognizer somehow interferes with and disables WebKit's handling / creation of PointerEvents. Note that css :hover is also affected.

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