[Webkit-unassigned] [Bug 198129] REGRESSION: Layout Test scrollbars/overflow-custom-scrollbar-crash.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198129

--- Comment #9 from Antoine Quint <graouts at apple.com> ---
(In reply to Alexey Proskuryakov from comment #7)
> Out of curiosity, what was the mechanism that made
> pointerdown-prevent-default.html break a subsequent test?
> 
> Generally, this is not something that I would expect to happen in DOM event
> test cases.

A flag was set inside WebCore’s PointerCaptureController while handling pointerdown and it was not cleared on pointerup. The next test that runs starts off with the PointerCaptureController in a bad state, just like another interaction within that first test would have been a bad state, which is that the tests I’ve added check.

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