id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	parents
558	Honour user's browser language preference	spaetz		"A user accepting ""klingon, de-de, de, it"" will currently be served english web sites, as we try to serve the 1st choice and fall back to english if not available.

(WHY don't we have a klingon translation by the way???)

We need to fetch a list of available translations and match that up again the browsers accepted languages coming up with the best choice to use.

For this we can use 2 options: werkzeug.accepted_languages.best_match(['de', 'en']) which would be good, but probably is not sufficiently clever: initial test seems to show that preferred: ""de-de, ""en"" available: ""de"", ""en"" would negotiate ""en"".

Alternatively there is ""babel.negotiate"" which seems to be cleverer and return ""de"" if preferred ""de-de, en"" and available ""de, en"".

Investigate and fix."	enhancement	closed	major	0.3.2	programming	fixed