See https://github.com/w3c/csswg-drafts/issues/1693.
Safari TP currently includes support for this. It is also supported on iOS 11.0 using the previous constant() syntax.
iOS 11.1 uses the current env() syntax.
. . . Beginning with Safari Technology Preview 41 and the iOS 11.2 beta, constant() has been removed and replaced with env().
See WebKit Blog.
+1
+1
+1 for keeping track of this.
https://www.chromestatus.com/feature/5710044637167616: Enabled by default in Chrome for Android 69
We need this to develop for the new smartphones
I created pull request #4555 for this feature.
Now available at https://caniuse.com/#feat=css-env-function
@Fyrd
I'm not sure what happened, but https://caniuse.com/#feat=css-env-function doesn't seem to exist anymore.
@Malvoz Yeah, not sure what went wrong there. Fixed now!
Most helpful comment
Now available at https://caniuse.com/#feat=css-env-function