ERR_SSL_PROTOCOL_ERROR with nginx proxy

I am using fly to deploy an global nginx proxy as described in the app guides

I am able to access my fly app over https.
However, when i try to access another domain, which is a CNAME of my fly application, I am getting a handshake error

Please help

If you haven’t already, you’ll need to use flyctl certs add <domain> to let us know we should generated a certificate. Since you’ve already done a CNAME, that should just work within a minute or two.

If you’ve already added the cert with flyctl, and you’re getting that error, there’s something else wrong. The first thing to check is https://www.whatsmydns.net/ to make sure the CNAME shows everywhere.

I can have a look if you let me know what the domain you’re using is.

Thanks for the assist kurt. Turns out i missed the addcert part. Things are working now.

Ahhh good news! We should make that step more obvious, I think.