check it : https://45.132.XXX.XXX/
It’s a valid certificate
When I registered the SSL certificate, I did it for an IP address, not a domain. I don’t see why it wouldn’t have been possible.
If I do a POST request to https://45.132.XXX.XXX/webhooks/callback from a remote computer I do see it appear on my nodejs app logs. But I see nothing coming from Twitch, neither failed or successful requests