title: GetExternalLoginInfoAsync always return null when i trying login using Facebook or Google
body: <p>I have a problem with <code>OWIN</code> Authentication. I always receive null value from <code>GetExternalLoginInfoAsync()</code> when I trying log in using Facebook or Google.</p>
  
  <p><strong>BUT there is some mystical case.. When I open Fiddler. I get correct data using this method.</strong></p>
  
  <p>I can't get the reason</p>
  
  <pre><code>var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
  </code></pre>
  
  <p>Thanks in advance!! </p>