Hi Wilson,

Le 2 déc. 2015 à 19:09, Wilson Page <[email protected]> a écrit :
> I think we should be seriously considering exploring UA ambiguity (and all 
> that that comes with), at least on Firefox OS, if we are to provide the best 
> web experience on mobile.

I think I already explained in the past. ^_^
We already have **UA override**.
Firefox OS: 
https://hg.mozilla.org/mozilla-central/file/tip/b2g/app/ua-update.json.in
Firefox Android: 
https://hg.mozilla.org/mozilla-central/file/tip/mobile/android/app/ua-update.json.in


UA overriding doesn't solve it. Sometimes it often creates even a worse 
experience for a user with a total broken experience. For example, making the 
UA of Firefox OS being Chrome and you get a totally unusable Web site, because 
Google expects it to be Chrome feature sets and rendering engine. 
See for example https://bug914252.bmoattachments.org/attachment.cgi?id=8689920
in the bug https://bugzilla.mozilla.org/show_bug.cgi?id=914252


That said 
we (Web Compat) are working for months already with Engineering on how to 
remove the most important issues (implementing non-standards API, Aliasing some 
webkit properties, etc). **Once** these are in place, we will have a lot more 
flexibility on playing with the UA. You can follow 
https://bugzilla.mozilla.org/show_bug.cgi?id=1170774 to see our progress.

Note that I'm happy to discuss anything about Google properties. I'm the Moz 
point of contact for all Web compat issues with Google. The discussion with 
Google is along two axis:

1. send a specific version to a specific UA string
2. fix the CSS/JS they send.

The 1. is not very hard for them. The 2. has mostly been a no-no on many 
issues. 
But the 1. can't happen if the version we receive is worse than the version we 
were receiving initially. 


PS: Wilson, Let's meet in Orlando next week. Let's have a coffee or drink. And 
I will share and show you what our team is doing and the extent of the issues. 


-- 
Karl Dubost, Mozilla
http://www.la-grange.net/karl/moz

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