title: Set-Cookie header not setting cookie in Chrome
body: <p>I'm AJAXing a call to a another services API, which is then supposed to return a cookie that will be set in my browser to allow me to make the rest of my API calls. </p>
  
  <p>However, while the response headers include a 'Set-Cookie' header, no cookie is ever actually set. I'm using Google Chrome. </p>
  
  <p>Here is the Response Headers:</p>
  
  <pre><code>Access-Control-Allow-Origin:*
  Cache-Control:no-cache
  Connection:keep-alive
  Content-Encoding:gzip
  Content-Length:37
  Content-Type:application/json
  Date:Thu, 25 Jun 2015 18:27:37 GMT
  Expires:Thu, 25 Jun 2015 18:27:36 GMT
  Server:nginx/1.4.6 (Ubuntu)
  Set-Cookie:sessionid=67cb9796aa794a4975b28876ea6dd3d5; expires=Thu, 09-Jul-2015 18:27:37 GMT; httponly; Max-Age=1209600; Path=/
  Vary:Cookie
  </code></pre>
  
  <p>And here is the AJAX call:</p>
  
  <pre><code>$.ajax({
              type: "POST",
              crossDomain: true,
              contentType: 'text/plain',
              data: data,
              url: urlhere 
              success: function(result, status, xhr){
                  console.log('hi');
                  console.log(xhr.getAllResponseHeaders());
              }, 
              error: function(xhr){
                  console.log(xhr.status);
                  console.log(xhr.statusText);
              }
  });
  </code></pre>
  
  <p>The Chrome resources page also shows that no cookie is being set. Any and all help would be greatly appreciated! </p>