[Webkit-unassigned] [Bug 107609] REGRESSION(r139800): animations with start delay may not animate if page becomes hidden

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=107609





--- Comment #4 from Beth Dakin <bdakin at apple.com>  2013-01-22 20:36:18 PST ---
First we should agree on desired behavior. 

(In reply to comment #0)
> http://trac.webkit.org/changeset/139800
> 
> It's not clear from the Changelog which of these changes are intentional:
> 
> Animation events do not fire while page is hidden.

I tend to think this is correct behavior, but I am open to a discussion.

> Animations may not animate if page becomes hidden then visible again during animation-delay.

Definitely a bug.

> Animations do not make progress while page is hidden.

Personally I like this behavior as well, but I do think it's open to discussion. 

And Simon pointed out that suspend does not prevent new animations, which is also definitely a bug.

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