ricordisamoa/labs — pull request #3 by ireas (2013-10-15 00:33:32+00:00)
Title: Check for opt-in page and abort if not present

As there are major concern about DUI being avaliable for everyone, I implented an opt-in solution that requires the page `Special:MyPage/EditCounterOptIn-DUI.js` to be created in the wiki queried or on meta. If that opt-in page is not present, an error message is displayed and the calculation is aborted.