- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Thu, 20 Sep 2012 08:40:57 -0400
- To: www-style@w3.org
On 9/20/12 6:06 AM, Simon Sapin wrote: > Hi, > > About sections §6.1 and §6.2, is there a difference between: > > 1. a declaration being 'invalid' (and thus being ignored by the parser > to allow old-style fallbacks) > 2. being 'not supported' (resolving to false in @supports) There shouldn't be, ideally. In Gecko, the same code implements both, so they're the same by definition there. > I’m thinking in particular of 6.2’s comment on values that might be > valid in a spec but the UA "do not have a usable level of support for". Sane UAs would treat that as "invalid". Of course historically not all UAs are always sane. :( -Boris
Received on Thursday, 20 September 2012 12:41:30 UTC