Re: [csswg-drafts] [css-contain] What is the migration path for Container Queries? (#6175)

> ```js
> CSS.supports("not foo()")
> ```
> 
> That returns `true` in Firefox (as I'd expect, fwiw), but `false` in Chrome and Safari. So you can't use `@supports not container(..)` unless they implement the new thing. We should probably get interop on that. My understanding given the supports syntax in https://drafts.csswg.org/css-conditional/#typedef-supports-condition is that this is a Chromium / WebKit bug. Does it match yours @lilles?

I think that `foo()` is `<general-enclosed>` which is unknown, and `not unknown` is unknown, and I couldn't figure out how uknown should be handled.


-- 
GitHub Notification of comment by lilles
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/6175#issuecomment-824253261 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Wednesday, 21 April 2021 18:03:42 UTC