title: SignalR - Forever Frame in IE stops working after a few minutes of being idle
body: <p>I am using SignalR in IE9 and, unfortunately, it has to degrade to using the forever frame connection.</p>
  
  <p>I have spent some time looking at this with the Developer Tools in IE. I can see the  callbacks loading into the dynamically inserted IFrame, and they call the receive function in the SignalR plugin. However after about 20/30 of these it just stops responding - I can no longer call client script from the server.</p>
  
  <p>I'm guessing that the IFrame load is finally timing out, but there appear to be no events raised for this, so I cannot force a reconnect.</p>
  
  <p>Has anyone managed to get a robust SignalR connection working in IE?</p>
  
  <p>Thanks :)</p>