Author: cbm.wikipedia
Description:
Attempting to directly load a page with an interwiki prefix fails with an 'unsupported character' error, while directly loading an interlanguage page works as expected. Example:
This link works: http://en.wikipedia.org/w/index.php?title=fr:Main_page
This link does not work: http://en.wikipedia.org/w/index.php?title=mw:Main_page
Both titles work identically when typed into the search box; it's only when they are typed directly into the URL that the difference is noticeable.
Version: 1.11.x
Severity: enhancement