title: Ruby on Rails - request.env['HTTP_REFERER'] returns nil
body: <p>I am trying to save the http_referer so I can send the user back to that url after he has logged in. Right now I have a before_filter in my controllers that sends them to a log in page if a session has not been created via a redirect_to. However when I check the HTTP_REFERER it is nil (whereas 'REQUEST_URI' does return where Im originally coming from).</p>
  
  <p>Thank you.</p>