Geoffrey Garen <gga...@apple.com> writes: > Hi folks. > > Should navigator.language and/or HTTP Accept-Language include my > locale in addition to my language — even if the combination is exotic? > > For example, if I speak English but I like Polish number formatting, > should navigator.language report “en-pl”? > > This question came up in WebKit because ECMA-402’s DefaultLocale() > incorporates both language and locale and, to avoid confusion, we > wanted navigator.language, HTTP Accept-Language, and ECMA-402 > DefaultLocale() to agree with each other.
It confuses me why you would want to have those three to agree. • navigator.language is the language of the interface • HTTP Accept-Language is the language of content • ECMA-402 DefaultLocale() is the user's locale To me, these seem like completely different things. For example, I am currently on a computer in Germany where LANG is de_DE.UTF-8, but my browser uses HTTP Accept-Language to display web sites in English. > Alexey has raised the point that “English as spoken in Poland” / > “English with a Polish locale” is not a language, and is a potentially > surprising value. Therefore, it might risk breaking websites. Do you have evidence for web sites being broken by this string? > On the other hand, “en-pl” is a syntactically valid BCP 47 language > tag, and it’s the only way to avoid incompatibility between code that > uses ECMA-402 and code that uses navigator.language and/or HTTP > Accept-Language. What incompatibilities are there? I do not understand this. > In researching this question, I discovered that lots of code uses > navigator.language and/or HTTP Accept-Language to infer the user’s > locale, despite the fact that language and locale are not > equivalent. For example, the #1 search result for “infer user locale” > is <http://www.w3.org/International/questions/qa-accept-lang-locales>, > which states, "since many applications need to know the locale of the > user, common practice has used Accept-Language to determine this > information”. > > Regards, > Geoff -- Nils Dagsson Moskopp // erlehmann <http://dieweltistgarnichtso.net>