It seems to me, as if they also do some magic to intercept requests to the currently visited page. They use a relative path url (SYS_URL) to poll for a state an

It seems to me, as if they also do some magic to intercept requests to the currently visited page. They use a relative path url (SYS_URL) to poll for a state and to send the acknowledgement (functions checkBulletin() and sendAck()). From my understanding that would be a request to the current domain/visited page, right? So they just intercept their 'own' magic url, but it bothers me somehow. Can anybody confirm this? My uptime is far beyond reasonable.