WPT
wpt / css / css-animations / AnimationEffect-updateTiming.tentative.html
Spec: CSS Animations ↗
Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@4a01b83e3, 2026-09-04) | Safari 251 preview (wpt@a1e944e7a, 2026-09-04) | Ladybird 1.0-a7825 (wpt@4a01b83e3, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 5/5 | 5/5 | 5/5 | 2/5 | 0/5 | 0/5 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| AnimationEffect.updateTiming({ duration }) causes changes to the animation-duration to be ignored | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| AnimationEffect.updateTiming({ iterations, direction }) causes changes to the animation-iteration-count and animation-direction to be ignored | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| AnimationEffect.updateTiming({ delay, fill }) causes changes to the animation-delay and animation-fill-mode to be ignored | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| AnimationEffect.updateTiming() does override to changes from animation-* properties if there is an error | PASS | PASS | PASS | PASS | FAIL | FAIL |
| AnimationEffect properties that do not map to animation-* properties should not be changed when animation-* style is updated | PASS | PASS | PASS | PASS | FAIL | FAIL |