[Webkit-unassigned] [Bug 166962] animation-delay has limit in proceeded amount of seconds

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jan 18 22:51:53 PST 2017


--- Comment #7 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
The actual bug happens when animation-delay is a large enough negative number that monotonicallyIncreasingTime() + delay becomes negative. So the longer your machine has been running, the greater the negative values that work. This isn't about clamping, it's about WebKit assuming that m_startTime += m_animation->delay() is always positive (where m_startTime is set from monotonicallyIncreasingTime()).

Simpler reduction attached.

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