WPT
wpt / cors / preflight-failure.htm
Spec: Fetch ↗
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 | 37/37 | 37/37 | 37/37 | 37/37 | 37/37 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Should succeed if preflight has status 200 | PASS | PASS | PASS | PASS | PASS | — |
| Should succeed if preflight has status 299 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 300 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 301 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 302 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 303 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 304 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 305 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 306 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 307 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 308 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 400 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 401 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 402 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 403 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 404 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 405 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 406 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 407 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 408 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 409 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 410 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 411 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 412 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 413 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 414 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 415 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 416 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 417 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 500 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 501 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 502 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 503 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 504 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 505 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 680 | PASS | PASS | PASS | PASS | PASS | — |
| Should throw error if preflight has status 790 | PASS | PASS | PASS | PASS | PASS | — |