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wpt / css / css-mixins / private / private-cssom-serialization.tentative.html

Spec: CSS Functions and Mixins ↗

Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@4a01b83e3, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-a7825 (wpt@4a01b83e3, 2026-09-04) | 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

ChromeFirefoxSafariLadybirdServoBlitz
Total16/160/160/160/160/16NOT RUN
SubtestChromeFirefoxSafariLadybirdServoBlitz
Empty @private rulePASSFAILFAILFAILFAIL—
Untyped variable without a default——————
Untyped variable with a defaultPASSFAILFAILFAILFAIL—
Multiple variablesPASSFAILFAILFAILFAIL—
Repeated variable namePASSFAILFAILFAILFAIL—
Trailing whitespace is omittedPASSFAILFAILFAILFAIL—
Typed variable without a default——————
Typed variable with a defaultPASSFAILFAILFAILFAIL—
Multi-component typePASSFAILFAILFAILFAIL—
Single-component type() is unwrappedPASSFAILFAILFAILFAIL—
Universal type is omitted——————
Custom-ident type() is unwrapped——————
Structured default valuePASSFAILFAILFAILFAIL—
Escaped variable namePASSFAILFAILFAILFAIL—
Escaped custom-ident typePASSFAILFAILFAILFAIL—
An all-invalid block serializes as an empty rulePASSFAILFAILFAILFAIL—
Invalid declarations are omittedPASSFAILFAILFAILFAIL—
!important declaration is omittedPASSFAILFAILFAILFAIL—
A variable without a value is omittedPASSFAILFAILFAILFAIL—
A typed variable without a value is omittedPASSFAILFAILFAILFAIL—