Can you use an http endpoint instead of an https endpoint?
Of course, as the Home Assistant server is local I can have it be accessible over HTTP. I may look into allowing both HTTP and HTTPS traffic to the server on different ports then only use HTTP for things like Flic.
Https with a non-trusted certificate is kind of insecure anyway.
Sure, it is more about wanting to make sure that all traffic is encrypted within the network. Even if that certificate isn't trusted by a browsers (or a CA) having some encryption is better than none.
The middle ground here would be to set up a DNS server and then have a trusted certificated issued from a known CA.
I was simply hoping that I could either tell the HTTP Module to ignore certificate errors, or add my certificate to a trusted list. Sounds like that is currently not the case, can you confirm?