Contact emails
[email protected]
Specification
https://drafts.csswg.org/css-conditional-4/#support-definition-ext
Summary
Some functional selectors are parsed forgivingly. (e.g. :is(), :has())
If an argument of the functional selectors is unknown or invalid, the
argument is dropped but the selector itself is not invalidated. To
provide a way of detecting the unknown or invalid arguments in those
functional selectors, this feature applies the CSS Working Group issue
resolution: - @supports uses non-forgiving parsing for all selectors
(https://github.com/w3c/csswg-drafts/issues/7280#issuecomment-1143852187)
Blink component
Blink <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink>
TAG review
TAG review status
Not applicable
Risks
Interoperability and Compatibility
/Gecko/:
Shipped/Shippinghttps://bugzilla.mozilla.org/show_bug.cgi?id=1789248
/WebKit/: Positive
/Web developers/: Positive
/Other signals/:
WebView application risks
No
Debuggability
This can be tested by calling 'CSS.supports(<selector>)' in the DevTools
Console window.
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
Yes
Is this feature fully tested byweb-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
*
https://wpt.fyi/results/css/css-conditional/at-supports-selector-detecting-invalid-in-forgiving-argument.html
*
https://wpt.fyi/results/css/css-conditional/js/CSS-supports-selector-detecting-invalid-in-forgiving-argument.html
Flag name
Requires code in //chrome?
False
Launch bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1359396
Estimated milestones
109
Anticipated spec changes
The issue is resolved and closed :
https://github.com/w3c/csswg-drafts/issues/7280
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6177049203441664
This intent message was generated byChrome Platform Status
<https://chromestatus.com/>.
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