[css3-conditional] What does @supports return when the OS prevents the support?

• From: James Nurthen <james.nurthen@oracle.com>
• Date: Tue, 08 Jan 2013 16:36:34 -0800
• To: CSS WG <www-style@w3.org>
• Message-ID: <50ECBB92.6090004@oracle.com>

When the CSS processor "supports" a value BUT the OS prevents the 
support from actually occurring what would be the result?
For example. Would
@supports (background-color: #CCC) return true or false when running in 
Windows High Contrast mode where background colours are not applied.

It would be very useful if this would return false - so this situation 
could be detected in CSS and appropriate styles applied.

Regards,
James

Received on Wednesday, 9 January 2013 00:37:09 UTC