WPT
wpt / user-timing / measure_exception.html
Spec: User Timing ↗
Runs: Chrome 155.0.8038.0 (wpt@397d01d8e, 2026-09-02) | Firefox 157.0a1 (wpt@397d01d8e, 2026-09-02) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-5f6fa (wpt@b1a7025f8, 2026-09-02) | Servo Servo 0.5 (wpt@2ccd2cbf8, 2026-09-01) | Blitz 7727414ca (wpt@a95401e4e, 2026-09-02)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 10/10 | 10/10 | 10/10 | 10/10 | 10/10 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Invocation of performance.measure() should throw TypeError Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception1", "NonExistMark1") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception2", "NonExistMark1", "navigationStart") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception3", "navigationStart", "NonExistMark1") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception4", "NonExistMark1", "ExistMark") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception5", "ExistMark", "NonExistMark1") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception6", "NonExistMark1", "NonExistMark2") should throw SYNTAX_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception7", "redirectStart") should throw INVALID_ACCESS_ERR Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception8", {"detail": "non-empty"}) should throw TypeError Exception. | PASS | PASS | PASS | PASS | PASS | — |
| Invocation of performance.measure("Exception9", {"start": 1, "duration": 2, "end": 3}) should throw TypeError Exception. | PASS | PASS | PASS | PASS | PASS | — |