and these "bad title" pages can be saved and loading them causes error.

I don't see "Bad title", just that single entry with an icon but no text... which for me (on English) loads the 'grave accent' article.

Setting to Chinese, the single entry I see is labled " ", and doesn't load (I see the 'sorry, no page by that name exists' indicating a 404 error on load)

(In reply to comment #2)

I don't see "Bad title", just that single entry with an icon but no text...
which for me (on English) loads the 'grave accent' article.

Setting to Chinese, the single entry I see is labled " ", and doesn't load (I
see the 'sorry, no page by that name exists' indicating a 404 error on load)

Don't choose that entry from the list but press "Go" in soft keyboard directly. (TouchPal)

Ok, I can confirm that.

Looks like 'bad title' doesn't return an HTTP error, either straight or via MobileFrontend:

https://en.wikipedia.org/wiki/# - 200 OK
https://en.m.wikipedia.org/wiki/# - 200 OK

so the client has no idea anything's wrong. :(

Added bug 33646 as a dep.

philinje wrote:

Brion, it look alike the underlying Mediawiki dependency was fixed. Can we close this?

Doesn't appear to have been deployed yet, so there would be no visible change or fix yet.

Hitting 'Go' no longer takes people to the direct page title, so this has been fixed.