title: SignalR GET requests 'Cancelled' when transport=ServerSentEvents
body: <p>I have deployed a ASP.NET MVC 4 w/ SignalR application of mine which is working fine on all clients, except one. When using Chrome Dev tools to debug the page I see that the SignalR transport method is ServerSentEvents and that the SignalR GET requests have a status of 'Cancelled'. This is the case in both Chrome Latest &amp; IE 9 Browsers.</p>
  
  <p>This problem is specific to a single client. A few things I have tried are:</p>
  
  <ul>
  <li>Disabling Windows Firewall </li>
  <li>Adding my site to Trusted Sites with
  Security settings 'Low'.</li>
  </ul>
  
  <p>As a bit of a background on the client.. they are part of a corporate network running Windows 7. Another computer on the same network had the same issue, however, this was fixed by adding my site to 'Trusted Sites'.</p>