title: Facebook - What is "XD Proxy", and can I block/hide it?
body: <p>I'm trying to integrate a Flash Professional/AS3 game into Facebook.  The swf is hosted on a secure (https) server.  The swf has to connect to a SmartFoxPro socket server on another domain.</p>
  
  <p>I'm using the Facebook Actionscript API to interface with Facebook.  (Should I use PHP, instead?  I read an article that recommends using PHP, because the Actionsrcipt API may not be kept up to date.)  When I fire up my app, I get a "Security Information" pop-up box saying that the page contains both secure and nonsecure items.  I click "yes" to all the display of the nonsecure items.</p>
  
  <p>Then, I get an "XD Proxy blah-blah-blah" popup.  This pop-up goes away, and then my app logs in to my SmartFox server.</p>
  
  <p>So... What is this "XD Proxy" window?  I think it looks unprofessional, and users may think there's an error with the app.  Can I block or hide this window?</p>
  
  <p>Also, can I block or hide the "Security Information" pop-up?  Why don't I see this in other FB apps?</p>