Re: [css3-ui] interoperability of outline:invert (Issue 42)

> On 25 Nov 2014, at 22:17, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> 
> Yes, if we're allowing implementions to not support the value, we
> should require them to *not support the value*, including parsing.
> (a) is the best answer.

That's what we resolved to do (http://lists.w3.org/Archives/Public/www-style/2014Dec/0067.html). Patch attached to make it happen.

 - Florian