Caddy v2.11.4's caddyfile adapter rejects 'tls { insecure_skip_verify }'
inside transport http (unrecognized subdirective '{') and also rejects
the handler-level form. The working form, verified live against PMS with
a throwaway caddy (200 OK), is the bare token:
reverse_proxy 192.168.0.235:32400 {
transport http {
tls_insecure_skip_verify
}
}