title: Laravel returning error when using header
body: <p>Im trying to download a file, but i keep getting the following error</p>
  
  <pre><code>Type error: Too few arguments to function Illuminate\Http\Response::header(), 1 passed in /home/vagrant/projects/name/app/Http/Controllers/InitialController.php on line 178 and at least 2 expected
  </code></pre>
  
  <p>The code im using is as follows:</p>
  
  <pre><code>return (new Response($file, 200))
      -&gt;header('Content-Type', 'text/plain')
      -&gt;header('Content-Disposition: attachment; filename="filename.gz"');
  </code></pre>
  
  <p>It works fine if i leave out the Content-Disposition line, but when i add it i get the error.</p>
  
  <p>Any help would be grand.</p>
  
  <p>Peace!</p>