title: Caching JSON with Cloudflare
body: <p>I am developing a backend system for my application on Google App Engine.</p>
  
  <p>My application and backend server communicating with json. Like <a href="http://server.example.com/api/check_status/3838373.json" rel="noreferrer">http://server.example.com/api/check_status/3838373.json</a> or only <a href="http://server.example.com/api/check_status/3838373/" rel="noreferrer">http://server.example.com/api/check_status/3838373/</a></p>
  
  <p>And I am planning to use CloudFlare for caching JSON pages.</p>
  
  <p>Which one I should use on header? :</p>
  
  <pre><code>Content-type: application/json
  Content-type: text/html
  </code></pre>
  
  <p>Is CloudFlare cache my server's responses to reduce my costs? Because I'll not use CSS, image, etc.</p>