[Webkit-unassigned] [Bug 207256] visibilitychange event does not get always fired on background but it may on foreground

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207256

Kongpheng <Kongpheng.Nanthavongsa at vonage.com> changed:

           What    |Removed                     |Added
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                 CC|                            |Kongpheng.Nanthavongsa at vona
                   |                            |ge.com

--- Comment #5 from Kongpheng <Kongpheng.Nanthavongsa at vonage.com> ---
Any updates?  This bug is still reproducible on iOS 13.5.1.  I included a fiddle to reproduce the issue, without the need for a video element: https://jsfiddle.net/vkpheng/pv0omfrn/.

To reproduce:
* On iOS Safari, open this fiddle and run it
* Click Home button to background Safari
* Immediately click Safari icon to bring Safari back to the foreground
* Notice that no alert pops up

Expected: an alert pops up, since there was a visibility change.

Please advise.  Thanks!

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