WPT
wpt / css / cssom / selectorSerialize.html
Spec: CSSOM ↗
Runs: Chrome 155.0.8039.0 (wpt@508cc6a62, 2026-09-03) | Firefox 157.0a1 (wpt@508cc6a62, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-56c61 (wpt@8fdda8ce4, 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 | 23/23 | 23/23 | 23/23 | 23/23 | 23/23 | 0/23 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| :nth-child serialization produces canonical form | PASS | PASS | PASS | PASS | PASS | FAIL |
| single universal selector shows '*' when serialized. | PASS | PASS | PASS | PASS | PASS | FAIL |
| single type (simple) selector in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single class (simple) selector in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single id (simple) selector in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector which does not accept arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector "lang" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector "nth-child" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector "nth-last-child" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector "nth-of-child" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector ":nth-last-of-type" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| single pseudo (simple) selector ":not" which accepts arguments in the sequence of simple selectors that is not a universal selector | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character in attribute name | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character as code point in attribute name | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (@) in attribute name | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character in attribute name with any namespace | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character in attribute prefix | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character in both attribute prefix and name | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (\) in element name | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (\) in element name with any namespace without default | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (\) in element name with any namespace with default | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (\) in element name with no namespace | PASS | PASS | PASS | PASS | PASS | FAIL |
| escaped character (*) in element prefix | PASS | PASS | PASS | PASS | PASS | FAIL |