MediaWiki:Gadget-purgetab.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
Opera: Press Ctrl-F5.

/* Purge caption button */
$.when($.ready,mw.loader.using('mediawiki.util')).then(function() {
   var hist; var url;
   if (!(hist = document.getElementById('ca-history') )) return;
   if (!(url = hist.getElementsByTagName('a')[0] )) return;
   if (!(url = url.href )) return;
   var title = (skin == "vector") ? "Purge" : "*";
   mw.util.addPortletLink('p-cactions', url.replace(/([?&]action=)history([&#]|$)/, '$1purge$2'),
                  title, 'ca-purge', 'Purge cache', '*');
});