title: How to get "Host:" header from HttpContext (asp.net)
body: <p>I need to server parts of my application from different domains.
  To be precise I have a sub section of the site that should be served from a region specific domain. For example:</p>
  
  <ul>
  <li>/fr/* should be served from www.domain.fr</li>
  <li>/uk/* should be serverd from www.domain.co.uk
  and so on.</li>
  </ul>
  
  <p>I'd like to make a route entry that will redirect the request with wrong domain to the correct domain. But I don't know how to access http header information form HttpContext.</p>
  
  <p>Any help is welcome.</p>