title: How to integrate an image proxy server with a caching proxy?
body: <p>I have an imgproxy server, as shown below. It's able to transform an image (resize, crop) using URL parameters.
  <a href="https://i.stack.imgur.com/Is4zq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Is4zq.png" alt="enter image description here" /></a></p>
  <p>Now I would like to add a caching proxy. So an image only would be processed (resized, cropped) if that doesn't exist in the cache.</p>
  <p>I've read that AWS Cloudfront or Cloudflare or maybe Google Cloud CDN could be the caching proxy, what would be great. But unfortunately I didn't find any example of how to do that. I appreciate if anyone can help me.</p>