[csswg-drafts] [css-conditional-3] [css-fonts-4] Allow CSS.supports('font-family: system-ui') for feature detection

foolip has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-conditional-3] [css-fonts-4] Allow CSS.supports('font-family: 
system-ui') for feature detection ==
https://drafts.csswg.org/css-conditional-3/#the-css-interface
https://drafts.csswg.org/css-fonts-4/#extended-generics

Context: blink-dev [Intent to Implement and Ship: The “system-ui” 
generic font 
family](https://groups.google.com/a/chromium.org/d/msg/blink-dev/hvN9YVvIb5c/5DrcunKSCAAJ)
 where I wonder "Would there really be any privacy concern in allowing
 support for an alias like this to be detected? It seems about as 
harmless as CSS.supports('font-family: sans-serif')."

I couldn't actually find which specs makes it currently not work, help
 @kojiishi?

It seems like a good idea to support this for all generic font 
families, to disable any code that might be making guesses based on 
other information.

Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/590 using your GitHub 
account

Received on Tuesday, 11 October 2016 13:08:41 UTC