pub fn evaluate_conditional_headers(
current_etag: &str,
last_modified: Option<&str>,
if_none_match: Option<&str>,
if_modified_since: Option<&str>,
) -> ConditionalRequestOutcomeExpand description
Evaluate conditional request headers (If-None-Match, If-Modified-Since).
When both headers are present, If-None-Match takes precedence as required
by RFC 7232 section 6; If-Modified-Since is intentionally not evaluated.