THeaders

type THeaders = set of (

  hhUnknown,

Unknown or unrecognized header type.

  hhAccept,

Accept header - specifies acceptable response media types.

  hhAcceptCharset,

Accept-Charset header - specifies acceptable character encodings.

  hhAcceptEncoding,

Accept-Encoding header - specifies acceptable content encodings.

  hhAcceptLanguage,

Accept-Language header - specifies acceptable natural languages.

  hhAcceptRanges,

Accept-Ranges header - indicates server support for range requests.

  hhAge,

Age header - indicates response age in seconds.

  hhAllow,

Allow header - lists supported HTTP methods for resource.

  hhAuthorization,

Authorization header - contains client authentication credentials.

  hhCacheControl,

Cache-Control header - specifies caching directives.

  hhConnection,

Connection header - controls connection persistence.

  hhContentEncoding,

Content-Encoding header - specifies content compression method.

  hhContentLanguage,

Content-Language header - specifies content natural language.

  hhContentLength,

Content-Length header - specifies content size in bytes.

  hhContentLocation,

Content-Location header - specifies alternative resource location.

  hhContentMD5,

Content-MD5 header - contains MD5 hash of content.

  hhContentRange,

Content-Range header - specifies partial content range.

  hhContentType,

Content-Type header - specifies media type of content.

  hhDate,

Date header - specifies message origination date and time.

  hhETag,

ETag header - provides entity tag for caching validation.

  hhExpires,

Expires header - specifies response expiration date and time.

  hhExpect,

Expect header - indicates expected server behaviors.

  hhFrom,

From header - contains user agent email address.

  hhHost,

Host header - specifies target host and port number.

  hhIfMatch,

If-Match header - makes request conditional on entity tag.

  hhIfModifiedSince,

If-Modified-Since header - makes request conditional on modification date.

  hhIfNoneMatch,

If-None-Match header - makes request conditional on entity tag mismatch.

  hhIfRange,

If-Range header - makes range request conditional on entity tag or date.

  hhIfUnModifiedSince,

If-Unmodified-Since header - makes request conditional on lack of modification.

  hhLastModified,

Last-Modified header - specifies resource last modification date.

  hhLocation,

Location header - specifies redirect or resource location.

  hhMaxForwards,

Max-Forwards header - limits number of proxy forwards.

  hhPragma,

Pragma header - contains implementation-specific directives.

  hhProxyAuthenticate,

Proxy-Authenticate header - specifies proxy authentication method.

  hhProxyAuthorization,

Proxy-Authorization header - contains proxy authentication credentials.

  hhRange,

Range header - specifies partial content ranges to retrieve.

  hhReferer,

Referer header - specifies referring page URI.

  hhRetryAfter,

Retry-After header - specifies delay before retry attempt.

  hhServer,

Server header - specifies server software information.

  hhTE,

TE header - specifies acceptable transfer encodings.

  hhTrailer,

Trailer header - specifies header fields in chunked encoding trailer.

  hhTransferEncoding,

Transfer-Encoding header - specifies message body encoding method.

  hhUpgrade,

Upgrade header - specifies protocol upgrade options.

  hhUserAgent,

User-Agent header - specifies client software information.

  hhVary,

Vary header - specifies headers affecting response selection.

  hhVia,

Via header - specifies intermediate proxy information.

  hhWarning,

Warning header - provides additional warning information.

  hhWWWAuthenticate

WWW-Authenticate header - specifies server authentication method.

);

THeader

Enumeration of standard HTTP 1.1 headers.