WPT
wpt / web-animations / timing-model / animations / setting-the-playback-rate-of-an-animation.html
Spec: Web Animations ↗
Runs: Chrome 155.0.8043.0 (wpt@b89af32bc, 2026-09-05) | Firefox 157.0a1 (wpt@b89af32bc, 2026-09-05) | Safari 251 preview (wpt@b89af32bc, 2026-09-05) | Ladybird 1.0-ea63e (wpt@b89af32bc, 2026-09-05) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | 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 | 8/8 | 8/8 | 8/8 | 8/8 | 0/8 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| The playback rate affects the rate of progress of the current time | PASS | PASS | PASS | PASS | FAIL | — |
| Setting the playback rate while play-pending preserves the current time | PASS | PASS | PASS | PASS | FAIL | — |
| Setting the playback rate while playing preserves the current time | PASS | PASS | PASS | PASS | FAIL | — |
| Setting the playback rate should clear any pending playback rate | PASS | PASS | PASS | PASS | FAIL | — |
| Setting the playback rate while paused preserves the current time and state | PASS | PASS | PASS | PASS | FAIL | — |
| Setting the playback rate while finished preserves the current time | PASS | PASS | PASS | PASS | FAIL | — |
| Reversing the playback rate while finished restarts the animation | PASS | PASS | PASS | PASS | FAIL | — |
| Setting a zero playback rate while running preserves the current time | PASS | PASS | PASS | PASS | FAIL | — |