Rocket.Chat Documentation - Amazon S3


You’ll need to set the following CORS Configuration to your bucket:

Important: Replace *ROCKET_CHAT_DOMAIN* with the domain of your Rocket Chat installation, e.g. If for some reason you want to make your CORS configuration ridiculously insecure, you can set it to * to allow CORS requests from any host on the Internet, but do so at your own risk.

This is a companion discussion topic for the original entry at