small addition to i18n.txt with regard to caching
|Reported by:||hugo||Owned by:||Adrian Holovaty|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
The i18n.txt (reading much smoother than my version!) should point out that the LocaleMiddleware needs to be _after_ the CacheMiddleware (if used), because it modifies the Vary-header. Otherwise the accept-language header wouldn't be used correctly.
And it is a case for #730: the LocaleMiddleware needs in process_request access to the session, so must come _after_ SessionMiddleware. But SessionMiddleware and LocaleMiddleware must come _after_ CacheMiddleware, so that the caching sees the Vary header in process_response (due to the reversed order of middleare). That's exactly the kind of "order deadlock" the user can't solve without giving explicit middleware order.
I copied the above text to #730, too.