WPT
wpt / user-timing / performance-measure-invalid.worker.html
Spec: User Timing ↗
Runs: Chrome 155.0.8039.0 (wpt@47d833bbc, 2026-09-03) | Firefox 157.0a1 (wpt@47d833bbc, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-3d220 (wpt@476394464, 2026-09-03) | 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 | 1/2 | 2/2 | 2/2 | 2/2 | 2/2 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| When converting 'navigationStart' to a timestamp, the global object has to be a Window object. | PASS | PASS | PASS | PASS | PASS | — |
| When converting 'navigationStart' to a timestamp and a mark named 'navigationStart' exists, the global object has to be a Window object. | FAIL | PASS | PASS | PASS | PASS | — |