title: Handle hash (#) in query string
body: <p>I try create simple OAuthHandler.
  After my request (using the <a href="https://vk.com/dev/implicit_flow_user" rel="nofollow noreferrer">implicit flow</a>), server send request to my page, with an authorization code. But in query string from server, all parameters starts with hash (#) instead?</p>
  
  <p>In method HandleRemoteAuthenticateAsync, I'm trying to parse query string, but none of the properties contain authorization code or anything like that.</p>
  
  <p>How can I handle hash in query string?</p>