Board Thread:Support Requests - Getting Technical/@comment-5175866-20170626155705

I have this Jquery script on my MediaWiki:Commons.js. When I test it via the Chrome console it appears to work (prepending before the Fandom recirculation rail), however it does not work naturally on the JS page. Is there something I need to do to get it to apply at all pages (does Common.js not get run on all pages automatically)? What would I need to do to get the script to execute on every page. 