[Webkit-unassigned] [Bug 219670] Tap to click inconsistent with normal click on OSX

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219670

--- Comment #24 from Tim Horton <thorton at apple.com> ---
(In reply to mic.gallego from comment #23)
> Hi Tim,
> 
> A follow up on this: it apparently also happens on iPad:
> https://warehouse-theme-metal.myshopify.com/
> 
> If you do a search and then tap to click the search closes without following
> the link.

I can reproduce this...

> Adding a delay on the focusout doesn't solve this issue.

...but not this. I disabled the focusout handlers in the web inspector and the page works perfectly fine on iPad, as expected. Can you put a version somewhere with your delay (that doesn't work), instead, so I can play with that? (also, I see three focusout handlers, but only the one on div.header__search-bar-wrapper.is-visible.is-fixed seems to matter).

Tap-to-click on macOS and tap on iOS share literally no code, but *do* share the critical behavioral difference that I mentioned at the beginning (that the mousedown/up happens instantly, as opposed to over a short time with a traditional trackpad click) so the fact that the issue reproduces in both cases is surprising if it is a WebKit issue...

> I think there is definitely a big issue on how Safari handles tap to touch
> internally under some circumstances, I would really appreciate if this could
> be thoroughly investigated :).

I continue to expect those circumstances are "when the site removes the thing being tapped on before the gesture is complete", but we shall see! :D

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