MediaWiki:Gadget-purgetab.js

/* Purge caption button */ addOnloadHook(function {   var hist; var url;   if (!(hist = document.getElementById('ca-history') )) return;   if (!(url = hist.getElementsByTagName('a')[0] )) return;   if (!(url = url.href )) return;   addPortletLink('p-cactions', url.replace(/([?&]action=)history([&#]|$)/, '$1purge$2'), '*', 'ca-purge', 'Purge cache', '*'); });