Thread:Project:Support desk/MWdumper not working in Mediawiki Api/reply

It doesn't sound like mwdumper isn't working. If you go to the Main_Page of your site with ?action=edit on the url do you stay on your own site?

Actually, looking over MediaWiki:Common.js for Wiktionary, it looks like there is some js that is redirecting you to that site. Maybe blank your own Common.js and see if that fixes the problem? You really want to adapt the js to your site, though.