[Errata Verified] RFC7230 (4825)
RFC Errata System <rfc-editor@rfc-editor.org> Fri, 07 October 2016 20:34 UTC
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Subject: [Errata Verified] RFC7230 (4825)
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The following errata report has been verified for RFC7230, "Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing". -------------------------------------- You may review the report below and at: http://www.rfc-editor.org/errata_search.php?rfc=7230&eid=4825 -------------------------------------- Status: Verified Type: Technical Reported by: Alex Rousskov <rousskov@measurement-factory.com> Date Reported: 2016-04-13 Verified by: Alexey Melnikov (IESG) Section: Appendix B Original Text ------------- chunk-ext = *( ";" chunk-ext-name [ "=" chunk-ext-val ] ) Corrected Text -------------- chunk-ext = *( BWS ";" BWS chunk-ext-name [ BWS "=" BWS chunk-ext-val ] ) Notes ----- The infamous "implicit *LWS" syntax rule in RFC 2616 allowed whitespace between ";" and chunk-ext-name in chunk-ext. Some HTTP agents generate that whitespace. In my experience, HTTP agents that can parse chunk extensions usually can handle that whitespace. Moreover, ICAP, which generally relies on HTTP/1 for its message syntax, uses that whitespace when defining the "ieof" chunk extension in RFC 3507 Section 4.5: \r\n 0; ieof\r\n\r\n IMHO, RFC 7230 should either allow BWS before chunk-ext-name or at the very least explicitly document the HTTP/1 syntax change and its effect on parsers used for both ICAP and HTTP/1 messages (a very common case for ICAP-supporting HTTP intermediaries and ICAP services). I also recommend adding BWS around "=", for consistency and RFC 2616 backward compatibility reasons. HTTPbis RFCs already do that for transfer-parameter and auth-param that have similar syntax. Please also consider adding BWS _before_ ";" for consistency and RFC 2616 backward compatibility reasons. HTTPbis RFCs already do that for transfer-extension, accept-ext, t-ranking, and other constructs with similar syntax. -------------------------------------- RFC7230 (draft-ietf-httpbis-p1-messaging-26) -------------------------------------- Title : Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing Publication Date : June 2014 Author(s) : R. Fielding, Ed., J. Reschke, Ed. Category : PROPOSED STANDARD Source : Hypertext Transfer Protocol Bis APP Area : Applications Stream : IETF Verifying Party : IESG
- [Errata Verified] RFC7230 (4825) RFC Errata System