Re: [lots] -webkit prefixed properties and values

> On 10 Dec 2015, at 10:21, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> 
>> FWIW, I realise Servo exists. I wasn’t trying to suggest that it shouldn’t
>> be counted. I should have said that it is extremely unlikely that a
>> starting-from-scratch implementation will only consider the canonical
>> W3C specifications and pretend everything else doesn't exist.
> 
> I'm not sure what you're suggesting here.  Are you saying that new
> implementations should be forced to take compat-pain to see what
> undocumented things they need to support, and then reverse-engineer
> existing implementations?  If so, I strongly disagree.

Again, all I’m saying is that I think they belong in a compatibility specification and
not in the main specifications. 

> 
>> As for the prefixed properties, it’s not clear to me what criteria is
>> necessary for it to be considered essential enough to document.
>> e.g. -moz-column-count or -moz-animation.
> 
> It appears to be "another major browser was forced to implement it due
> to sufficient compat pain".  We (Chrome) clearly don't care about
> whatever tiny fraction of pages use only -moz-animation; they're
> either FF tech demos, or practically non-existent.

Does Servo implementing -moz properties count?