Thread:Yustus/@comment-497139-20160902173139/@comment-497139-20160903220025

Yes, I can upload changes in the Mediawiki space. ''The Sandbox mode is to test js stuff in the Mediawiki Namespace locally. And if the code works you submit it to wikia staff. They approve it and after that its global for all users of the wiki.''

You can try to use your personal js space to test or override code. It's located at: User:Yustus/common.js. Or if that does not work start a personal test wiki: http://www.wikia.com/Special:CreateNewWiki

ps2) good idea