On a mobile device visit...
https://en.wikipedia.org/w/index.php?title=Cat
...then visit...
https://en.wikipedia.org/wiki/Cat
Expected result: both redirect to mobile view (en.m.wikipedia.org)
Actual result: only the canonical URL redirects to the mobile view
I can only reproduce this bug on the cluster and beta labs. On my local machine, both URLs redirect properly.
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=61489
bingle-admin wrote:
Prioritization and scheduling of this bug is tracked on Trello card https://trello.com/c/422pJjh6
According to Max this is on purpose. Non-canonical URLs are not redirected by Varnish in order to avoid causing issues with API calls, etc.
(In reply to Jon from comment #5)
Max for completeness can you elaborate? What caching problems might arise?
Where did anyone say anything about caching? :P
It's different kind of problems: you make an API request but suddenly get a redirect, etc.
We can. However, index.php and other entry points definitely have their own corner cases, that's why we should only redirect if we're 101% sure it's only a page view.
MaxSem: So you're suggesting that we should only redirect page views and not things like diffs or action=edit, etc.? In that case we should close bug 61489 as WONTFIX and revert the changes that were made to facilitate that.
Another possibility would be to specifically whitelist diff URLs for redirection. What do you think of that idea?