Re: [csswg-drafts] [css-transitions-2] transition-timing-function and getComputedTiming() (#4288)

That's a great question. In Firefox we apply it to the first keyframe for consistency with CSS animations, but I can see how it might be more intuitive for an author if it applied to the effect instead (so you can substitute out the keyframe values without affecting the easing).

Furthermore, regarding the reversing behavior you identified, it looks like we ran into the same issue in Firefox and have an outstanding issue to moving the easing to the effect instead ([code comment](https://searchfox.org/mozilla-central/rev/588814f2edddf0e132d77d326ddae50911e8bad1/layout/style/nsTransitionManager.cpp#695-699), [bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1292001)).

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Received on Wednesday, 11 September 2019 03:22:14 UTC