Hi there,
I've discovered an issue when testing my environment, which uses AWS S3 for storage. I found that images were being requested twice in the console, and the results were that the images would not load on the front-end.

After some digging, i came across this thread, which explains the issue quite clearly.
https://serverfault.com/questions/856904/chrome-s3-cloudfront-no-access-control-allow-origin-header-on-initial-xhr-req/856948#856948

In the Accepted Answer, i was able to implement the Workaround #1, using Cloudfront and assigning a Custom Origin Headers value. This works, but i think this solution would be restrictive to some folks.

I recommend implementing the Alternative Hackaround #2 in the application itself.

Thanks