WPT
wpt / long-animation-frame / loaf-forced-layout-duration.html
Spec: Long Animation Frames API ↗
Runs: Chrome 155.0.8041.0 (wpt@18be93235, 2026-09-04) | Firefox 157.0a1 (wpt@1b4bc17cf, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-17043 (wpt@25681acff, 2026-09-04) | 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 | 5/5 | 0/5 | 0/5 | 0/5 | 0/5 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| forcedLayoutDuration attribute exists and is <= forcedStyleAndLayoutDuration | PASS | — | — | — | — | — |
| forcedLayoutDuration is 0 when no forced layout occurs | PASS | — | — | — | — | — |
| forcedLayoutDuration accumulates multiple forced layout recalculations | PASS | — | — | — | — | — |
| forcedStyleDuration + forcedLayoutDuration ≈ forcedStyleAndLayoutDuration | PASS | — | — | — | — | — |
| forcedLayoutDuration is 0 when only style recalculation is forced (no layout) | PASS | — | — | — | — | — |