Intent to prototype: CSS Module Scripts

[Daniel Minor]

Summary: This allows importing css stylesheets as modules in JavaScript using import attributes.

Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1720570

Specification: https://html.spec.whatwg.org/#creating-a-css-module-script

Standards Body: WHATWG

Platform coverage: All platforms.

Preference: layout.css.module-scripts.enabled

DevTools bug: N/A

Link to standards-positions discussion: https://github.com/mozilla/standards-positions/issues/541 (positive)

Other browsers:

• Blink: Shipped in version 93 (intent to ship: https://groups.google.com/a/chromium.org/g/blink-dev/c/iT0bQjzD04k/m/VkHPoOFLBAAJ)
• WebKit: Work does not appear to have started (tracking bug is: https://bugs.webkit.org/show_bug.cgi?id=227967)

web-platform-tests: https://wpt.fyi/results/html/semantics/scripting-1/the-script-element/css-module

Thanks,
Daniel