Enumeration Header

* Accept-Datetime Accept-Encoding Accept-Features Accept-Language Accept-Patch Accept-Post Accept-Ranges Access-Control Access-Control-Allow-Credentials Access-Control-Allow-Headers Access-Control-Allow-Methods Access-Control-Allow-Origin Access-Control-Expose-Headers Access-Control-Max-Age Access-Control-Request-Headers Access-Control-Request-Method Age Allow ALPN Alt-Svc Alt-Used Alternates AMP-Cache-Transform Apply-To-Redirect-Ref Authentication-Control Authentication-Info Authorization C-Ext C-Man C-Opt C-PEP C-PEP-Info Cache-Control Cache-Status Cal-Managed-ID CalDAV-Timezones CDN-Cache-Control CDN-Loop Cert-Not-After Cert-Not-Before Clear-Site-Data Close Configuration-Context Connection Content-Base Content-Disposition Content-Encoding Content-ID Content-Language Content-Length Content-Location Content-MD5 Content-Range Content-Script-Type Content-Security-Policy Content-Security-Policy-Report-Only Content-Style-Type Content-Transfer-Encoding Content-Type Content-Version Cookie Cookie2 Cost Cross-Origin-Embedder-Policy Cross-Origin-Embedder-Policy-Report-Only Cross-Origin-Opener-Policy Cross-Origin-Opener-Policy-Report-Only Cross-Origin-Resource-Policy DASL Date DAV Default-Style Delta-Base Depth Derived-From Destination Differential-ID Digest Early-Data EDIINT-Features ETag Expect Expect-CT Expires Ext Forwarded From GetProfile Hobareg Host HTTP2-Settings If If-Match If-Modified-Since If-None-Match If-Range If-Schedule-Tag-Match If-Unmodified-Since IM Include-Referred-Token-Binding-ID Isolation Keep-Alive Label Last-Event-ID Last-Modified Link Location Lock-Token Man Max-Forwards Memento-Datetime Message-ID Meter Method-Check Method-Check-Expires MIME-Version Negotiate OData-EntityId OData-Isolation OData-MaxVersion OData-Version Opt Optional-WWW-Authenticate Ordering-Type Origin Origin-Agent-Cluster OSCORE OSLC-Core-Version Overwrite P3P PEP Pep-Info PICS-Label Ping-From Ping-To Position Pragma Prefer Preference-Applied Priority ProfileObject Protocol Protocol-Info Protocol-Query Protocol-Request Proxy-Authenticate Proxy-Authentication-Info Proxy-Authorization Proxy-Features Proxy-Instruction Proxy-Status Public Public-Key-Pins Public-Key-Pins-Report-Only Range Redirect-Ref Referer Referer-Root Refresh Repeatability-Client-ID Repeatability-First-Sent Repeatability-Request-ID Repeatability-Result Replay-Nonce Retry-After Safe Schedule-Reply Schedule-Tag Sec-GPC Sec-Token-Binding Sec-WebSocket-Accept Sec-WebSocket-Extensions Sec-WebSocket-Key Sec-WebSocket-Protocol Sec-WebSocket-Version Security-Scheme Server Server-Timing Set-Cookie Set-Cookie2 SetProfile SLUG SoapAction Status-URI Strict-Transport-Security Sunset Surrogate-Capability Surrogate-Control TCN TE Timeout Timing-Allow-Origin Title Topic Traceparent Tracestate Trailer Transfer-Encoding TTL Upgrade Urgency URI User-Agent Variant-Vary Vary Version Via Want-Digest Warning WWW-Authenticate X-Content-Type-Options X-Device-Accept X-Device-Accept-Charset X-Device-Accept-Encoding X-Device-Accept-Language X-Device-User-Agent X-Frame-Options