How to properly set up a Node.js HTTPS test for secure connections? or What's the best way to run a N

Check your cert’s expiration date! I wasted a day debugging only to realize my cert had expired.

Also, if you’re on macOS, Keychain Access might be interfering. Try removing the cert from there and re-adding it.

Nodejs https test issues are often env-specific, so share your OS/node version if you’re still stuck.