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{"field_name":"Redirect-Ref","status":"permanent","structured_type":null,"rfc":4437,"references":"RFC 4437","comments":null}
{"field_name":"Referer","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 10.1.3","comments":null}
{"field_name":"Referer-Root","status":"obsoleted","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Referrer-Policy","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":"The header name does not share the HTTP Referer header's misspelling."}
{"field_name":"Refresh","status":"permanent","structured_type":null,"rfc":null,"references":"HTML","comments":null}
{"field_name":"Repeatability-Client-ID","status":"provisional","structured_type":null,"rfc":null,"references":"OASIS","comments":null}
{"field_name":"Repeatability-First-Sent","status":"provisional","structured_type":null,"rfc":null,"references":"OASIS","comments":null}
{"field_name":"Repeatability-Request-ID","status":"provisional","structured_type":null,"rfc":null,"references":"OASIS","comments":null}
{"field_name":"Repeatability-Result","status":"provisional","structured_type":null,"rfc":null,"references":"OASIS","comments":null}
{"field_name":"Replay-Nonce","status":"permanent","structured_type":null,"rfc":8555,"references":"RFC 8555, Section 6.5.1","comments":null}
{"field_name":"Reporting-Endpoints","status":"provisional","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Repr-Digest","status":"permanent","structured_type":"Dictionary","rfc":9530,"references":"RFC 9530, Section 3","comments":null}
{"field_name":"Retry-After","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 10.2.3","comments":null}
{"field_name":"SLUG","status":"permanent","structured_type":null,"rfc":5023,"references":"RFC 5023","comments":null}
{"field_name":"Safe","status":"obsoleted","structured_type":null,"rfc":2310,"references":"RFC 2310","comments":"[Status change of HTTP experiments to Historic]"}
{"field_name":"Schedule-Reply","status":"permanent","structured_type":null,"rfc":6638,"references":"RFC 6638","comments":null}
{"field_name":"Schedule-Tag","status":"permanent","structured_type":null,"rfc":6338,"references":"RFC 6338","comments":null}
{"field_name":"Sec-Fetch-Dest","status":"permanent","structured_type":"Item","rfc":null,"references":"https://www.w3.org/TR/fetch-metadata/#sec-fetch-dest-header","comments":null}
{"field_name":"Sec-Fetch-Mode","status":"permanent","structured_type":"Item","rfc":null,"references":"https://www.w3.org/TR/fetch-metadata/#sec-fetch-mode-header","comments":null}
{"field_name":"Sec-Fetch-Site","status":"permanent","structured_type":"Item","rfc":null,"references":"https://www.w3.org/TR/fetch-metadata/#sec-fetch-site-header","comments":null}
{"field_name":"Sec-Fetch-Storage-Access","status":"provisional","structured_type":"Token","rfc":null,"references":"https://privacycg.github.io/storage-access-headers","comments":null}
{"field_name":"Sec-Fetch-User","status":"permanent","structured_type":"Item","rfc":null,"references":"https://www.w3.org/TR/fetch-metadata/#sec-fetch-user-header","comments":null}
{"field_name":"Sec-GPC","status":"provisional","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Sec-Purpose","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":"Intended to replace the (not registered) Purpose and x-moz headers."}
{"field_name":"Sec-Token-Binding","status":"permanent","structured_type":null,"rfc":8473,"references":"RFC 8473","comments":null}
{"field_name":"Sec-WebSocket-Accept","status":"permanent","structured_type":null,"rfc":6455,"references":"RFC 6455","comments":null}
{"field_name":"Sec-WebSocket-Extensions","status":"permanent","structured_type":null,"rfc":6455,"references":"RFC 6455","comments":null}
{"field_name":"Sec-WebSocket-Key","status":"permanent","structured_type":null,"rfc":6455,"references":"RFC 6455","comments":null}
{"field_name":"Sec-WebSocket-Protocol","status":"permanent","structured_type":null,"rfc":6455,"references":"RFC 6455","comments":null}
{"field_name":"Sec-WebSocket-Version","status":"permanent","structured_type":null,"rfc":6455,"references":"RFC 6455","comments":null}
{"field_name":"Security-Scheme","status":"obsoleted","structured_type":null,"rfc":2660,"references":"RFC 2660","comments":"[Status change of HTTP experiments to Historic]"}
{"field_name":"Server","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 10.2.4","comments":null}
{"field_name":"Server-Timing","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Set-Cookie","status":"permanent","structured_type":null,"rfc":6265,"references":null,"comments":null}
{"field_name":"Set-Cookie2","status":"obsoleted","structured_type":null,"rfc":2965,"references":"RFC 2965","comments":"Obsoleted by [RFC 6265: HTTP State Management Mechanism]"}
{"field_name":"Set-Txn","status":"permanent","structured_type":null,"rfc":9967,"references":"RFC 9967, Section 3","comments":null}
{"field_name":"SetProfile","status":"obsoleted","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Signature","status":"permanent","structured_type":"Dictionary","rfc":9421,"references":"RFC 9421, Section 4.2","comments":null}
{"field_name":"Signature-Input","status":"permanent","structured_type":"Dictionary","rfc":9421,"references":"RFC 9421, Section 4.1","comments":null}
{"field_name":"SoapAction","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Status-URI","status":"permanent","structured_type":null,"rfc":2518,"references":"RFC 2518","comments":null}
{"field_name":"Strict-Transport-Security","status":"permanent","structured_type":null,"rfc":6797,"references":"RFC 6797","comments":null}
{"field_name":"Sunset","status":"permanent","structured_type":null,"rfc":8594,"references":"RFC 8594","comments":null}
{"field_name":"Surrogate-Capability","status":"provisional","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Surrogate-Control","status":"provisional","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"TCN","status":"permanent","structured_type":null,"rfc":2295,"references":"RFC 2295","comments":null}
{"field_name":"TE","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 10.1.4","comments":null}
{"field_name":"TTL","status":"permanent","structured_type":null,"rfc":8030,"references":"RFC 8030, Section 5.2","comments":null}
{"field_name":"Timeout","status":"permanent","structured_type":null,"rfc":4918,"references":"RFC 4918","comments":null}
{"field_name":"Timing-Allow-Origin","status":"provisional","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Topic","status":"permanent","structured_type":null,"rfc":8030,"references":"RFC 8030, Section 5.4","comments":null}
{"field_name":"Traceparent","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Tracestate","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"Trailer","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 6.6.2","comments":null}
{"field_name":"Transfer-Encoding","status":"permanent","structured_type":null,"rfc":9112,"references":"RFC 9112, Section 6.1","comments":null}
{"field_name":"URI","status":"obsoleted","structured_type":null,"rfc":2068,"references":"RFC 2068","comments":null}
{"field_name":"Unencoded-Digest","status":"permanent","structured_type":"Dictionary","rfc":null,"references":null,"comments":null}
{"field_name":"Upgrade","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 7.8","comments":null}
{"field_name":"Urgency","status":"permanent","structured_type":null,"rfc":8030,"references":"RFC 8030, Section 5.3","comments":null}
{"field_name":"Use-As-Dictionary","status":"permanent","structured_type":"Dictionary","rfc":9842,"references":"RFC 9842, Section 2.1","comments":null}
{"field_name":"User-Agent","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 10.1.5","comments":null}
{"field_name":"Variant-Vary","status":"permanent","structured_type":null,"rfc":2295,"references":"RFC 2295","comments":null}
{"field_name":"Vary","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 12.5.5","comments":null}
{"field_name":"Via","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 7.6.3","comments":null}
{"field_name":"WWW-Authenticate","status":"permanent","structured_type":null,"rfc":9110,"references":"RFC 9110, Section 11.6.1","comments":null}
{"field_name":"Want-Content-Digest","status":"permanent","structured_type":"Dictionary","rfc":9530,"references":"RFC 9530, Section 4","comments":null}
{"field_name":"Want-Digest","status":"obsoleted","structured_type":null,"rfc":3230,"references":"RFC 3230","comments":"Obsoleted by [RFC 9530, Section 1.3: Digest Fields]"}
{"field_name":"Want-Repr-Digest","status":"permanent","structured_type":"Dictionary","rfc":9530,"references":"RFC 9530, Section 4","comments":null}
{"field_name":"Want-Unencoded-Digest","status":"permanent","structured_type":"Dictionary","rfc":null,"references":null,"comments":null}
{"field_name":"Warning","status":"obsoleted","structured_type":null,"rfc":9111,"references":"RFC 9111, Section 5.5","comments":null}
{"field_name":"X-Content-Type-Options","status":"permanent","structured_type":null,"rfc":null,"references":null,"comments":null}
{"field_name":"X-Frame-Options","status":"permanent","structured_type":null,"rfc":null,"references":"HTML","comments":null}