in src/apache-unomi-tracker.js [507:514]
invalidateSessionAndProfile: function () {
'use strict';
wem.sessionID = wem.generateGuid() + wem.browserGeneratedSessionSuffix;
wem.setCookie(wem.trackerSessionIdCookieName, wem.sessionID, 1);
wem.removeCookie(wem.contextServerCookieName);
wem.removeCookie(wem.trackerProfileIdCookieName);
wem.cxs = undefined;
},