This is relevant to the downloadable framework tutorials/demos and a general chrome testing FAQ You can bypass/disable the web security of Chrome to test applications that might otherwise violate a same origin security policy enforced by the browser. Create a shortcut on your desktop to chrome passing the -disable-web-security switch (ex: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-web-security) All chrome.exe processes must be closed before opening chrome with that shortcut/added switch Close all running Chrome.exe instances and applications.. Chrome Extensions could still be running in the background, so verify with a Running Task/Process Explorer. .. of course, I wouldn't recommend browsing the web with it though..