- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Mon, 1 Jul 2013 13:11:49 -0700
- To: Lea Verou <lea@w3.org>
- Cc: www-style list <www-style@w3.org>
On Mon, Jul 1, 2013 at 11:45 AM, Lea Verou <lea@w3.org> wrote: > Currently, Selectors 4 [1] says: > >> CSS implementations conformant to Selectors Level 4 must use the ‘fast’ >> profile for CSS selection. > > I'm not sure what this leaves besides the Selectors API, but shouldn't UAs > use the complete profile for non-interactive media as well, such as print? > The performance issues are not present there, right? This was discussed here: <http://lists.w3.org/Archives/Public/www-style/2013Apr/0246.html> (look near the bottom, particularly Simon Sapin's lines) > Also, why is this a "must" and not a "may"? With this wording, if a UA finds > a way to support the complete profile for CSS Selection, it will be a spec > violation! Or am I missing something? If browsers figure out how to support something sufficiently that it can be done in normal CSS, we'll move it into the fast profile. What we don't want is browsers being encouraged to implement a shitty-but-fast version of one of the complicated features. ~TJ
Received on Monday, 1 July 2013 20:12:38 UTC