#32768: An incorrect language is sometimes displayed - redirects adding a
language
code to a path can be inappropriate cached by HTTP caches
------------------------------------------------+------------------------
Reporter: ahaywardtvuk | Owner: nobody
Type: Bug | Status: new
Component: Internationalization | Version: 3.1
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
------------------------------------------------+------------------------
We have a multi-lingual site using LocaleMiddleware. With a CDN and
caching reverse proxy in use, the following sequence of events can happen:
* Fetch https://example.com/some-page/ with Accept-Language header 'de-
DE,de;q=0.9'. A redirect to https://example.com/de/some-page/ is returned.
* Fetch it again with Accept-Language header 'fr-FR,fr;q=0.9'. The cached
redirect is returned by HTTP caches and the German page is displayed
instead of the French one.
LocaleMiddleware is issuing a redirect based on the detected language from
the Accept-Language header or from the cookie chosen by
settings.LANGUAGE_COOKIE_NAME but is not telling caches that it has used
these headers.
Adding a Vary header fixes this.
--
Ticket URL: <https://code.djangoproject.com/ticket/32768>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/055.35e80e8b8991a6852b70d573fd96bea0%40djangoproject.com.
