Caddy tls internal Works — So Why Does the Browser Still Say Untrusted?
Private TLS is only trusted by clients that possess and trust the private root CA.
private CA
How I Proxy from One Caddy to Another Without tls_insecure_skip_verify
Internal HTTPS between proxies is useful only when the caller can verify the upstream identity.
Caddy Can Reach the HTTPS Upstream and Still Fail the TLS Handshake
An IP can be the correct route to an upstream while being the wrong identity for its certificate.