I upgraded my forum to v1.15.2 and am no longer able to post, delete, etc using the API. I see an error message stating "HTTPS is required for requests to the write api, please re-send your request via HTTPS".
It seems this is related to this commit since I am seeing a 426:
My site is running on an EC2 instance with an ALB in front. The ALB has an SSL cert and accepts traffic on ports 80 and 443. The ALB forwards all traffic to port 80 on the EC2 instance which has an nginx server proxying it to NodeBBs port 4567. My best guess is that something between the ALB and EC2 instance is tripping this error, but I am not sure how to work around it. With AWS managed certificates I can't install the SSL cert on the instance the traditional way. Any advice besides just rolling back?