SiteAdvisor Enterprise works ok when computer is outside corporate network. But inside the network there is a problem with pages blocked by corporate proxy. When navigating to such a page, the proxy returns HTTP/1.1 403 URLBlocked. The browser tries to access the page again and again in an infinite loop. The problem is on IE8-11, there is no problem on IE6 and Firefox. Internal Landmark is configured so SAE is aware that the network is protected by proxy (grey SA bar) and SAE shouldn't interfere. But it does. SAE version is 184.108.40.2064.