Confluence does not obey the browser's en-US language setting

[Jonathan Simonoff]

I've installed the US English language pack. It works if I switch my user setting within Confluence to US English, but does not work if I have that set to obey the browser setting. (My browser is set to US English, of course.)

The browser setting is obeyed if I set it to French. I wonder if Confluence can't handle two-level language codes from the browser (that is, when it gets en-US, it just sees en). Alternatively, I wonder if the US English language pack, which is community sourced, does not set its code correctly. So two questions:

1) Do two-level language codes from the browser work in Confluence?

2) If so, what in the language pack indicates the language code for the pack? Is it the pack name, or something else? (FYI -- I've looked for this info in the plugin docs, and haven't found anything.)

I don't want to make the config change that makes Confluence ignore the browser setting because we have UK users who like your default spelling.

We're using Confluence 4.0.4.

[Jonathan Simonoff · Accepted solution]

Turns out this is a known bug: https://jira.atlassian.com/browse/CONF-23220 . Vote on it if you want it fixed.