rfc9112v19.txt		rfc9112.txt
	Internet Engineering Task Force (IETF) R. Fielding, Ed.		Internet Engineering Task Force (IETF) R. Fielding, Ed.
	Request for Comments: 9112 Adobe		Request for Comments: 9112 Adobe
	STD: 97 M. Nottingham, Ed.		STD: 99 M. Nottingham, Ed.
	Obsoletes: 7230 Fastly		Obsoletes: 7230 Fastly
	Category: Standards Track J. Reschke, Ed.		Category: Standards Track J. Reschke, Ed.
	ISSN: 2070-1721 greenbytes		ISSN: 2070-1721 greenbytes
	April 2022		June 2022
	HTTP/1.1		HTTP/1.1
	Abstract		Abstract
	The Hypertext Transfer Protocol (HTTP) is a stateless application-		The Hypertext Transfer Protocol (HTTP) is a stateless application-
	level protocol for distributed, collaborative, hypertext information		level protocol for distributed, collaborative, hypertext information
	systems. This document specifies the HTTP/1.1 message syntax,		systems. This document specifies the HTTP/1.1 message syntax,
	message parsing, connection management, and related security		message parsing, connection management, and related security
	concerns.		concerns.
	skipping to change at line 1858 ¶		skipping to change at line 1858 ¶
	The change controller for the following registrations is: "IETF		The change controller for the following registrations is: "IETF
	(iesg@ietf.org) - Internet Engineering Task Force".		(iesg@ietf.org) - Internet Engineering Task Force".
	12.1. Field Name Registration		12.1. Field Name Registration
	IANA has added the following field names to the "Hypertext Transfer		IANA has added the following field names to the "Hypertext Transfer
	Protocol (HTTP) Field Name Registry" at		Protocol (HTTP) Field Name Registry" at
	<https://www.iana.org/assignments/http-fields>, as described in		<https://www.iana.org/assignments/http-fields>, as described in
	Section 18.4 of [HTTP].		Section 18.4 of [HTTP].
	+===================+===========+======+============+		+===================+===========+=========+============+
	| Field Name | Status | Ref. | Comments |		| Field Name | Status | Section | Comments |
	+===================+===========+======+============+		+===================+===========+=========+============+
	| Close | permanent | 9.6 | (reserved) |		| Close | permanent | 9.6 | (reserved) |
	+-------------------+-----------+------+------------+		+-------------------+-----------+---------+------------+
	| MIME-Version | permanent | B.1 | |		| MIME-Version | permanent | B.1 | |
	+-------------------+-----------+------+------------+		+-------------------+-----------+---------+------------+
	| Transfer-Encoding | permanent | 6.1 | |		| Transfer-Encoding | permanent | 6.1 | |
	+-------------------+-----------+------+------------+		+-------------------+-----------+---------+------------+
	Table 1		Table 1
	12.2. Media Type Registration		12.2. Media Type Registration
	IANA has updated the "Media Types" registry at		IANA has updated the "Media Types" registry at
	<https://www.iana.org/assignments/media-types> with the registration		<https://www.iana.org/assignments/media-types> with the registration
	information in Sections 10.1 and 10.2 for the media types "message/		information in Sections 10.1 and 10.2 for the media types "message/
	http" and "application/http", respectively.		http" and "application/http", respectively.
	12.3. Transfer Coding Registration		12.3. Transfer Coding Registration
	IANA has updated the "HTTP Transfer Coding Registry" at		IANA has updated the "HTTP Transfer Coding Registry" at
	<https://www.iana.org/assignments/http-parameters/> with the		<https://www.iana.org/assignments/http-parameters/> with the
	registration procedure of Section 7.3 and the content coding names		registration procedure of Section 7.3 and the content coding names
	summarized in the table below.		summarized in the table below.
	+============+===============================+===========+		+============+===========================================+=========+
	| Name | Description | Reference |		| Name | Description | Section |
	+============+===============================+===========+		+============+===========================================+=========+
	| chunked | Transfer in a series of | Section |		| chunked | Transfer in a series of chunks | 7.1 |
	| | chunks | 7.1 |		+------------+-------------------------------------------+---------+
	+------------+-------------------------------+-----------+		| compress | UNIX "compress" data format [Welch] | 7.2 |
	| compress | UNIX "compress" data format | Section |		+------------+-------------------------------------------+---------+
	| | [Welch] | 7.2 |		| deflate | "deflate" compressed data ([RFC1951]) | 7.2 |
	+------------+-------------------------------+-----------+		| | inside the "zlib" data format ([RFC1950]) | |
	| deflate | "deflate" compressed data | Section |		+------------+-------------------------------------------+---------+
	| | ([RFC1951]) inside the "zlib" | 7.2 |		| gzip | GZIP file format [RFC1952] | 7.2 |
	| | data format ([RFC1950]) | |		+------------+-------------------------------------------+---------+
	+------------+-------------------------------+-----------+		| trailers | (reserved) | 12.3 |
	| gzip | GZIP file format [RFC1952] | Section |		+------------+-------------------------------------------+---------+
	| | | 7.2 |		| x-compress | Deprecated (alias for compress) | 7.2 |
	+------------+-------------------------------+-----------+		+------------+-------------------------------------------+---------+
	| trailers | (reserved) | Section |		| x-gzip | Deprecated (alias for gzip) | 7.2 |
	| | | 12.3 |		+------------+-------------------------------------------+---------+
	+------------+-------------------------------+-----------+
	| x-compress | Deprecated (alias for | Section |
	| | compress) | 7.2 |
	+------------+-------------------------------+-----------+
	| x-gzip | Deprecated (alias for gzip) | Section |
	| | | 7.2 |
	+------------+-------------------------------+-----------+
	Table 2		Table 2
	| *Note:* the coding name "trailers" is reserved because its use		| *Note:* the coding name "trailers" is reserved because its use
	| would conflict with the keyword "trailers" in the TE header		| would conflict with the keyword "trailers" in the TE header
	| field (Section 10.1.4 of [HTTP]).		| field (Section 10.1.4 of [HTTP]).
	12.4. ALPN Protocol ID Registration		12.4. ALPN Protocol ID Registration
	IANA has updated the "TLS Application-Layer Protocol Negotiation		IANA has updated the "TLS Application-Layer Protocol Negotiation
	(ALPN) Protocol IDs" registry at <https://www.iana.org/assignments/		(ALPN) Protocol IDs" registry at <https://www.iana.org/assignments/
	tls-extensiontype-values/> with the registration below:		tls-extensiontype-values/> with the registration below:
	skipping to change at line 1936 ¶		skipping to change at line 1929 ¶
	| | 0x31 0x2e 0x31 ("http/1.1") | |		| | 0x31 0x2e 0x31 ("http/1.1") | |
	+----------+-----------------------------+-----------+		+----------+-----------------------------+-----------+
	Table 3		Table 3
	13. References		13. References
	13.1. Normative References		13.1. Normative References
	[CACHING] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,		[CACHING] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
	Ed., "HTTP Caching", RFC 9111, DOI 10.17487/RFC9111, April		Ed., "HTTP Caching", STD 98, RFC 9111,
	2022, <https://www.rfc-editor.org/info/rfc9111>.		DOI 10.17487/RFC9111, June 2022,
			<https://www.rfc-editor.org/info/rfc9111>.
	[HTTP] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,		[HTTP] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
	Ed., "HTTP Semantics", RFC 9110, DOI 10.17487/RFC9110,		Ed., "HTTP Semantics", STD 97, RFC 9110,
	April 2022, <https://www.rfc-editor.org/info/rfc9110>.		DOI 10.17487/RFC9110, June 2022,
			<https://www.rfc-editor.org/info/rfc9110>.
	[RFC1950] Deutsch, P. and J-L. Gailly, "ZLIB Compressed Data Format		[RFC1950] Deutsch, P. and J-L. Gailly, "ZLIB Compressed Data Format
	Specification version 3.3", RFC 1950,		Specification version 3.3", RFC 1950,
	DOI 10.17487/RFC1950, May 1996,		DOI 10.17487/RFC1950, May 1996,
	<https://www.rfc-editor.org/info/rfc1950>.		<https://www.rfc-editor.org/info/rfc1950>.
	[RFC1951] Deutsch, P., "DEFLATE Compressed Data Format Specification		[RFC1951] Deutsch, P., "DEFLATE Compressed Data Format Specification
	version 1.3", RFC 1951, DOI 10.17487/RFC1951, May 1996,		version 1.3", RFC 1951, DOI 10.17487/RFC1951, May 1996,
	<https://www.rfc-editor.org/info/rfc1951>.		<https://www.rfc-editor.org/info/rfc1951>.
	skipping to change at line 2331 ¶		skipping to change at line 2326 ¶
	See Appendix "Acknowledgements" of [HTTP], which applies to this		See Appendix "Acknowledgements" of [HTTP], which applies to this
	document as well.		document as well.
	Index		Index
	A C D F G H M O R T X		A C D F G H M O R T X
	A		A
	absolute-form (of request-target) Section 3.2.2		absolute-form (of request-target) Section 3.2.2
	application/http Media Type Section 10.2		application/http Media Type *_Section 10.2_*
	asterisk-form (of request-target) Section 3.2.4		asterisk-form (of request-target) Section 3.2.4
	authority-form (of request-target) Section 3.2.3		authority-form (of request-target) Section 3.2.3
	C		C
			chunked (Coding Format) Section 6.1; Section 6.3
			chunked (transfer coding) *_Section 7.1_*
			close Section 9.3; *_Section 9.6_*
			compress (transfer coding) *_Section 7.2_*
	Connection header field Section 9.6		Connection header field Section 9.6
	Content-Length header field Section 6.2		Content-Length header field Section 6.2
	Content-Transfer-Encoding header field Appendix B.5		Content-Transfer-Encoding header field Appendix B.5
	chunked (Coding Format) Section 6.1; Section 6.3
	chunked (transfer coding) Section 7.1
	close Section 9.3; Section 9.6
	compress (transfer coding) Section 7.2
	D		D
	deflate (transfer coding) Section 7.2		deflate (transfer coding) *_Section 7.2_*
	F		F
	Fields		Fields
	Close Section 9.6, Paragraph 4		Close *_Section 9.6, Paragraph 4_*
	MIME-Version Appendix B.1		MIME-Version *_Appendix B.1_*
	Transfer-Encoding Section 6.1		Transfer-Encoding *_Section 6.1_*
	G		G
	Grammar		Grammar
	ALPHA Section 1.2		ALPHA *_Section 1.2_*
	CR Section 1.2		CR *_Section 1.2_*
	CRLF Section 1.2		CRLF *_Section 1.2_*
	CTL Section 1.2		CTL *_Section 1.2_*
	DIGIT Section 1.2		DIGIT *_Section 1.2_*
	DQUOTE Section 1.2		DQUOTE *_Section 1.2_*
	HEXDIG Section 1.2		HEXDIG *_Section 1.2_*
	HTAB Section 1.2		HTAB *_Section 1.2_*
	HTTP-message Section 2.1		HTTP-message *_Section 2.1_*
	HTTP-name Section 2.3		HTTP-name *_Section 2.3_*
	HTTP-version Section 2.3		HTTP-version *_Section 2.3_*
	LF Section 1.2		LF *_Section 1.2_*
	OCTET Section 1.2		OCTET *_Section 1.2_*
	SP Section 1.2		SP *_Section 1.2_*
	Transfer-Encoding Section 6.1		Transfer-Encoding *_Section 6.1_*
	VCHAR Section 1.2		VCHAR *_Section 1.2_*
	absolute-form Section 3.2; Section 3.2.2		absolute-form Section 3.2; *_Section 3.2.2_*
	asterisk-form Section 3.2; Section 3.2.4		asterisk-form Section 3.2; *_Section 3.2.4_*
	authority-form Section 3.2; Section 3.2.3		authority-form Section 3.2; *_Section 3.2.3_*
	chunk Section 7.1		chunk *_Section 7.1_*
	chunk-data Section 7.1		chunk-data *_Section 7.1_*
	chunk-ext Section 7.1; Section 7.1.1		chunk-ext Section 7.1; *_Section 7.1.1_*
	chunk-ext-name Section 7.1.1		chunk-ext-name *_Section 7.1.1_*
	chunk-ext-val Section 7.1.1		chunk-ext-val *_Section 7.1.1_*
	chunk-size Section 7.1		chunk-size *_Section 7.1_*
	chunked-body Section 7.1		chunked-body *_Section 7.1_*
	field-line Section 5; Section 7.1.2		field-line *_Section 5_*; Section 7.1.2
	field-name Section 5		field-name Section 5
	field-value Section 5		field-value Section 5
	last-chunk Section 7.1		last-chunk *_Section 7.1_*
	message-body Section 6		message-body *_Section 6_*
	method Section 3.1		method *_Section 3.1_*
	obs-fold Section 5.2		obs-fold *_Section 5.2_*
	origin-form Section 3.2; Section 3.2.1		origin-form Section 3.2; *_Section 3.2.1_*
	reason-phrase Section 4		reason-phrase *_Section 4_*
	request-line Section 3		request-line *_Section 3_*
	request-target Section 3.2		request-target *_Section 3.2_*
	start-line Section 2.1		start-line *_Section 2.1_*
	status-code Section 4		status-code *_Section 4_*
	status-line Section 4		status-line *_Section 4_*
	trailer-section Section 7.1; Section 7.1.2		trailer-section Section 7.1; *_Section 7.1.2_*
	gzip (transfer coding) Section 7.2		gzip (transfer coding) *_Section 7.2_*
	H		H
	Header Fields		Header Fields
	MIME-Version Appendix B.1		MIME-Version *_Appendix B.1_*
	Transfer-Encoding Section 6.1		Transfer-Encoding *_Section 6.1_*
	header line Section 2.1		header line Section 2.1
	header section Section 2.1		header section Section 2.1
	headers Section 2.1		headers Section 2.1
	M		M
	MIME-Version header field Appendix B.1
	Media Type		Media Type
	application/http Section 10.2		application/http *_Section 10.2_*
	message/http Section 10.1		message/http *_Section 10.1_*
	message/http Media Type Section 10.1		message/http Media Type *_Section 10.1_*
	method Section 3.1		method *_Section 3.1_*
			MIME-Version header field *_Appendix B.1_*
	O		O
	origin-form (of request-target) Section 3.2.1		origin-form (of request-target) Section 3.2.1
	R		R
	request-target Section 3.2		request-target *_Section 3.2_*
	T		T
	Transfer-Encoding header field Section 6.1		Transfer-Encoding header field *_Section 6.1_*
	X		X
	x-compress (transfer coding) Section 7.2		x-compress (transfer coding) *_Section 7.2_*
	x-gzip (transfer coding) Section 7.2		x-gzip (transfer coding) *_Section 7.2_*
	Authors' Addresses		Authors' Addresses
	Roy T. Fielding (editor)		Roy T. Fielding (editor)
	Adobe		Adobe
	345 Park Ave		345 Park Ave
	San Jose, CA 95110		San Jose, CA 95110
	United States of America		United States of America
	Email: fielding@gbiv.com		Email: fielding@gbiv.com
	URI: https://roy.gbiv.com/		URI: https://roy.gbiv.com/
End of changes. 21 change blocks.
	102 lines changed or deleted		97 lines changed or added
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