@supports test

[ryanseddon]

Breaking this out of the @Viewport test #604.

http://jsfiddle.net/ryanseddon/zusu5/2/

Really easy detect by looking for "CSSSupportsRule" in window. I think that's good enough to push a plugin now.

Objections?

[paulirish]

SGTM.

can you doublecheck the webkit patch to make sure it adds this item to the
CSSOM?

[ryanseddon]

I'm making an assumption and it's not clear in the patch (though it looks like the CSSGrammar.y file might be responsible for that?) if it is in there but they do expose every other At-Rule on the window object. I got the latest nightly for windows and it's not in there yet.

[paulirish]

Well, I'm not sure about webkit either. It doesnt look like it exposes this, but it certainly should..

GOod to go for now and we'll keep an eye on this

[ryanseddon]

Just for reference there is talk on the www-style mailing list of introducing a CSS global where things like supports will live under.

CSS.supports()

I'll push the current detect real soon.