[hybi] [Technical Errata Reported] RFC6455 (6997)

RFC Errata System <rfc-editor@rfc-editor.org> Fri, 17 June 2022 12:31 UTC

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Date: Fri, 17 Jun 2022 05:31:23 -0700
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Subject: [hybi] [Technical Errata Reported] RFC6455 (6997)
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The following errata report has been submitted for RFC6455,
"The WebSocket Protocol".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid6997

--------------------------------------
Type: Technical
Reported by: Daniel Egger <daniel.egger@axiros.com>

Section: 4.3, 9.1

Original Text
-------------
      extension-param = token [ "=" (token | quoted-string) ]
           ; When using the quoted-string syntax variant, the value
           ; after quoted-string unescaping MUST conform to the
           ; 'token' ABNF.

Corrected Text
--------------
      extension-param = token [ "=" (token | quoted-string) ]


Notes
-----
The text reads as if any quoted-string which was supplied as a value has to follow the same rules as a token. That precludes the use of any token separators inside a quoted-string which is the whole reason why quoted-string exists as explained in RFC 2616:

   Many HTTP/1.1 header field values consist of words separated by LWS
   or special characters. These special characters MUST be in a quoted
   string to be used within a parameter value (as defined in section
   3.6).

Instructions:
-------------
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--------------------------------------
RFC6455 (draft-ietf-hybi-thewebsocketprotocol-17)
--------------------------------------
Title               : The WebSocket Protocol
Publication Date    : December 2011
Author(s)           : I. Fette, A. Melnikov
Category            : PROPOSED STANDARD
Source              : BiDirectional or Server-Initiated HTTP APP
Area                : Applications
Stream              : IETF
Verifying Party     : IESG