WPT
wpt / dom / nodes / Element-tagName.html
Spec: DOM ↗
Runs: Chrome 155.0.8042.0 (wpt@0588f3896, 2026-09-04) | Firefox 157.0a1 (wpt@0588f3896, 2026-09-04) | Safari 251 preview (wpt@0588f3896, 2026-09-04) | Ladybird 1.0-b1af2 (wpt@0588f3896, 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 | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| tagName should upper-case for HTML elements in HTML documents. | PASS | PASS | PASS | PASS | PASS | — |
| tagName should not upper-case for SVG elements in HTML documents. | PASS | PASS | PASS | PASS | PASS | — |
| tagName should not upper-case for other non-HTML namespaces | PASS | PASS | PASS | PASS | PASS | — |
| tagName should be updated when changing ownerDocument | PASS | PASS | PASS | PASS | PASS | — |
| tagName should be updated when changing ownerDocument (createDocument without prefix) | PASS | PASS | PASS | PASS | PASS | — |
| tagName should be updated when changing ownerDocument (createDocument with prefix) | PASS | PASS | PASS | PASS | PASS | — |