title: error when adding add_header to nginx
body: <p>I am trying to add "add_header" to nginx but the reload is failing:</p>
  
  <p><strong>add_header</strong></p>
  
  <pre><code>add_header Allow "GET, POST, HEAD" always;
  </code></pre>
  
  <p>When I run nginx -t, it points to this line mentioning I am passing too many parameters.  Any idea what I am doing wrong?</p>
  
  <p><strong>url for add_header:</strong></p>
  
  <pre><code>http://nginx.org/en/docs/http/ngx_http_headers_module.html#add_header
  </code></pre>