pub const CLIENT_IP_HEADERS: &[ClientIpHeader];Expand description
The effective header lookup order used by extract_client_ip.
The standardized Forwarded field is checked first, followed by the de
facto X-Forwarded-For, X-Real-IP, and CF-Connecting-IP fields. The
first present source wins. This standard-first order is a library
convention, not an RFC-defined precedence or trust policy.