IIRC, Chrome on desktop is pretty much the only one with support. Mobile is better to use the built in one from the keyboard interface. Other webkit browsers will pass a cursory test, but don't support it. My code (and demo) that has been used in production: github.com/mbrambilla/c...

Ok, so it looks like Firefox and WebKit allow keyframes to pass from CSS <style> in LightDOM to ShadowDOM(user-agent). At least that is what running WebKit within Playwright shows. I don't have a current MacOS/iOS to test on.

Any tips regarding Chrome? Am I crazy? Wrong?

It is a JS library causing the scroll jacking. Probably how it slipped past any scans. Quick search does not show any checks for motion prefs, but I was in no way thorough. github.com/darkroomengi...

Thank you for the feedback. Will try to consolidate the code in the future. Of course I did not see it before pushing a new version. One new feature that probably goes against the 'rules' is where you can replace the `<sw-image>` element with the image.