Wikipedia:WikiProject User scripts/Scripts/Add purge to tabs

// 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]]