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Re: [csswg-drafts] [selectors] Let :is() have better error-recovery behavior than normal Selectors (#3264)

From: Eric Willigers via GitHub <sysbot+gh@w3.org>
Date: Wed, 13 Feb 2019 02:58:31 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-463036664-1550026709-sysbot+gh@w3.org>
For `:not()`, I [added](https://chromium-review.googlesource.com/c/chromium/src/+/1354751) Blink use counters.

[kCSSSelectorNotWithValidList](https://www.chromestatus.com/metrics/feature/timeline/popularity/2645)
6% of pages have `:not()` with 2+ selectors, all valid, or a valid non-simple selector,  e.g. `:not(*, *)` or `:not(* + *)`

[kCSSSelectorNotWithInvalidList](https://www.chromestatus.com/metrics/feature/timeline/popularity/2646)
4.5% of pages have `:not()` with no valid selectors, e.g. `:not(:nonsense)`

[kCSSSelectorNotWithPartiallyValidList](https://www.chromestatus.com/metrics/feature/timeline/popularity/2647)
0.09% of pages have `:not()` containing both valid and invalid selectors, e.g. `:not(*, :nonsense)`



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Received on Wednesday, 13 February 2019 02:58:32 UTC

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