WPT
wpt / web-animations / animation-model / combining-effects / clamping-001.html
Spec: Web Animations ↗
Runs: Chrome 155.0.8042.0 (wpt@4eb09bcd9, 2026-09-04) | Firefox 157.0a1 (wpt@c3fcbf4ba, 2026-09-04) | Safari 251 preview (wpt@e7122b73f, 2026-09-04) | Ladybird 1.0-52f0f (wpt@a1ecd0c09, 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 | 12/12 | 12/12 | 4/12 | 4/12 | 0/12 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| 1. opacity keyframes should not clamp before compositing, replace -1 + add 1 = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 2. opacity keyframes should not clamp before compositing, replace 1 + add -1 = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 3. opacity keyframes should not clamp before compositing, replace -2 + add 2 = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 4. opacity keyframes should not clamp before compositing, replace 2 + add -2 = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 5. opacity keyframes should not clamp before compositing, replace 2 + add -1 = 1 | PASS | PASS | PASS | PASS | FAIL | — |
| 6. opacity keyframes should not clamp before compositing, replace -1 + add 2 = 1 | PASS | PASS | PASS | PASS | FAIL | — |
| 7. opacity keyframes should not clamp before compositing, replace -100% + add 100% = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 8. opacity keyframes should not clamp before compositing, replace 100% + add -100% = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 9. opacity keyframes should not clamp before compositing, replace -200% + add 200% = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 10. opacity keyframes should not clamp before compositing, replace 200% + add -200% = 0 | PASS | PASS | FAIL | FAIL | FAIL | — |
| 11. opacity keyframes should not clamp before compositing, replace 200% + add -100% = 1 | PASS | PASS | PASS | PASS | FAIL | — |
| 12. opacity keyframes should not clamp before compositing, replace -100% + add 200% = 1 | PASS | PASS | PASS | PASS | FAIL | — |