Wikipedia:WikiProject User scripts/Scripts/Add purge to tabs
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// addPurge
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'),
'Purge', 'ca-purge', 'Purge server cache for this page', '0');
});
// [[Category:Wikipedia scripts]]