Imports github.com/caddyserver/caddy/v2 github.com/caddyserver/caddy/v2/caddyconfig/caddyfile github.com/caddyserver/caddy/v2/modules/caddyhttp/reverseproxy go.uber.org/zap github.com/tailscale/certstore Standard library imports bytes crypto crypto/sha256 crypto/tls crypto/x509 fmt io net/http regexp strings sync sync/atomic