Hi Guillem, thank you for the reply. This sounds like it should be very helpful, except that we’re not making this request ourselves. This request is part of the ReadyPlayerMe webframe that gets auto-loaded as part of the WebGL template, so I’m relatively sure we don’t have access to change this URL.
The frame worked correctly until last week, during the error with the 400 CORS error that everyone had. I suspect it happened at the same time. We didn’t change any code, so the issue can only be somewhere in the RPM web frame javascript.