52037 2011-01-06 17:21:19 -0800 Start time of an animation can be before the start of the animation frame. 2012-01-04 03:59:18 -0800 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) PC All NEW P2 Normal --- 1 cmarrin cmarrin igor.oliveira jamesr simon.fraser oldest_to_newest 330567 0 cmarrin 2011-01-06 17:21:19 -0800 AnimationController has a notion of an animation frame. When you start a cycle, you snapshot the current time. Then all animations in that frame get the same timestamp. This concept has been globalized in AnimationTimeController. But right now AnimationController and AnimationTimeController aren't in sync about when a frame starts. Until they are, the ASSERT in KeyframeAnimation::fetchIntervalEndpointsForProperty has been commented out 330613 1 jamesr 2011-01-06 19:14:22 -0800 Yeah, the way AnimationTimeController calculates the start time is not ideal. I think we (I) need to rework this - I'll post thoughts on https://bugs.webkit.org/show_bug.cgi?id=51952