WPT
wpt / fetch / api / headers / headers-errors.any.worker.html
Spec: Fetch ↗
Runs: Chrome 155.0.8038.0 (wpt@b1a7025f8, 2026-09-02) | Firefox 157.0a1 (wpt@b1a7025f8, 2026-09-02) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-a7884 (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 | 18/18 | 18/18 | 18/18 | 18/18 | 18/18 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Create headers giving an array having one string as init argument | PASS | PASS | PASS | PASS | PASS | — |
| Create headers giving an array having three strings as init argument | PASS | PASS | PASS | PASS | PASS | — |
| Create headers giving bad header name as init argument | PASS | PASS | PASS | PASS | PASS | — |
| Create headers giving bad header value as init argument | PASS | PASS | PASS | PASS | PASS | — |
| Check headers get with an invalid name invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers get with an invalid name [object Object] | PASS | PASS | PASS | PASS | PASS | — |
| Check headers delete with an invalid name invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers delete with an invalid name [object Object] | PASS | PASS | PASS | PASS | PASS | — |
| Check headers has with an invalid name invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers has with an invalid name [object Object] | PASS | PASS | PASS | PASS | PASS | — |
| Check headers set with an invalid name invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers set with an invalid name [object Object] | PASS | PASS | PASS | PASS | PASS | — |
| Check headers set with an invalid value invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers append with an invalid name invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Check headers append with an invalid name [object Object] | PASS | PASS | PASS | PASS | PASS | — |
| Check headers append with an invalid value invalidĀ | PASS | PASS | PASS | PASS | PASS | — |
| Headers forEach throws if argument is not callable | PASS | PASS | PASS | PASS | PASS | — |
| Headers forEach loop should stop if callback is throwing exception | PASS | PASS | PASS | PASS | PASS | — |