Re: [csswg-drafts] [css3-conditional] Should CSS.supports() accept properties which are only valid in certain rules? (#5929)

> It appears that `size` is also valid in style declarations in WebKit in Chrome with the same syntax, which is hit in some web-platform tests, for instance https://github.com/web-platform-tests/wpt/blob/master/css/css-conditional/js/CSS-supports-CSSStyleDeclaration.html

Note that this test only checks that `CSSStyleDeclaration` and `CSS.supports` agree, which per the current spec is true (both only contain properties, because we don't actually define e.g. `CSSPageRule.style` as having attributes for like `page-size`, c.f. #5649).

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Received on Tuesday, 15 March 2022 17:00:43 UTC