Is extension: Publish to Mediawiki compatible with 4.1?

I’ve tried to use Publish to Mediawiki on a Fedora 19 and then a Windows 7 installation and I cannot get it to work.

It appears in the Extension manager and I can configure, but in Writer when I go to File > Send > To Mediawiki… nothing happens.

All config asks for it Url of the wiki and login credentials.

Has anyone had this work?

I am having the same problem with