WPT
wpt / xhr / xmlhttprequest-sync-default-permissions-policy.tentative.sub.html
Spec: XMLHttpRequest ↗
Runs: Chrome 155.0.8039.0 (wpt@2b4dfe72c, 2026-09-03) | Firefox 157.0a1 (wpt@2b4dfe72c, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-56c61 (wpt@ed1909ed6, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (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 | 5/5 | 3/5 | 5/5 | 0/5 | 3/5 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Default "sync-xhr" permissions policy ["*"] allows the top-level document. | PASS | PASS | PASS | — | PASS | — |
| Default "sync-xhr" permissions policy ["*"] allows same-origin iframes. | PASS | PASS | PASS | — | PASS | — |
| Default "sync-xhr" permissions policy ["*"] allows cross-origin iframes. | PASS | PASS | PASS | — | PASS | — |
| permissions policy "sync-xhr" can be disabled in cross-origin iframes using "allow" attribute. | PASS | FAIL | PASS | — | FAIL | — |
| permissions policy "sync-xhr" can be disabled in same-origin iframes using "allow" attribute. | PASS | FAIL | PASS | — | FAIL | — |