redirect_to_https

# File actionpack/lib/action_dispatch/middleware/ssl.rb, line 34
      def redirect_to_https(request)
        url        = URI(request.url)
        url.scheme = "https"
        url.host   = @host if @host
        url.port   = @port if @port
        headers    = { 'Content-Type' => 'text/html', 'Location' => url.to_s }

        [301, headers, []]
      end