Re: [w3ctag/design-reviews] Declarative CSS Modules and Declarative Shadow DOM `adoptedstylesheets` attribute (Issue #1000)

jyasskin left a comment (w3ctag/design-reviews#1000)

> Expecting `shadowrootadoptedstylesheets` to perform a fetch doesn't really work because: ...

This worries me, especially if it also worries @jakearchibald. It's different from "treating it like a specifier" since a JS import statement, where I believe specifiers come from, doesn't need its target to be pre-fetched in order to import it.

The downsides are real, and the CSSWG knows this space better than I do, but I feel like a FOUC is better than a style that's just ignored if it wasn't pre-fetched. Authors who want to avoid the FOUC can always add the <link> tag.

But as I said, if we want the TAG to review this detail, we should get a dedicated issue for it.

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Received on Wednesday, 11 February 2026 23:29:14 UTC