WPT
wpt / ai / language-model / language-model-append.tentative.https.window.html
Runs: Chrome 155.0.8040.0 (wpt@105b6a3a5, 2026-09-03) | Firefox 157.0a1 (wpt@e6996908b, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-f436a (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 | 0/6 | 0/6 | 0/6 | 0/6 | 0/6 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Simple LanguageModel.append() call | TIMEOUT | FAIL | FAIL | FAIL | FAIL | — |
| Check contextUsage increases from a simple LanguageModel.append() call | NOTRUN | FAIL | FAIL | FAIL | FAIL | — |
| Test that append input exceeding the total context window rejects | NOTRUN | FAIL | FAIL | FAIL | FAIL | — |
| append() should reject system role messages after other messages | NOTRUN | FAIL | FAIL | FAIL | FAIL | — |
| LanguageModel.append() allows empty and coerced inputs | NOTRUN | FAIL | FAIL | FAIL | FAIL | — |
| append() after initializing with user prompt should reject system role | NOTRUN | FAIL | FAIL | FAIL | FAIL | — |