Hi, welcome to Meta 
Can you check the browser’s console (and Network tab) to understand from what request you get a 403?
It’s possibly the draft I think 
.
Also, does it still happen in safe mode?
Hi, welcome to Meta
Can you check the browser’s console (and Network tab) to understand from what request you get a 403?
It’s possibly the draft I think .
Also, does it still happen in safe mode?