title: MVC Redirect with custom headers
body: <p>Hopefully this is a simple question for someone out there.</p>
  
  <p>Basically upon receiving a request to my MVC controller, I want to:</p>
  
  <ol>
  <li>Add an "Authorization" header to the response</li>
  <li>Redirect to another application sitting on another domain</li>
  <li>Read the "Authorization" header at this external site.</li>
  </ol>
  
  <p>It appears the act of redirecting, strips out all my custom headers and redirects.</p>
  
  <p>My question, how can I add a new header, AND perform a redirect, AND have that header show up in the headers for the receiving host [at the end of the redirect] to read?</p>