[hybi] [Technical Errata Reported] RFC6455 (5498)

RFC Errata System <rfc-editor@rfc-editor.org> Fri, 14 September 2018 14:57 UTC

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Subject: [hybi] [Technical Errata Reported] RFC6455 (5498)
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The following errata report has been submitted for RFC6455,
"The WebSocket Protocol".

You may review the report below and at:

Type: Technical
Reported by: Registration of Websocket Upgrade token should have been websocket <mcmanus@ducksong.com>

Section: 11.2

Original Text

   Name of token

Corrected Text

   Name of token

The HTTP bootstrap request is required to use an upgrade token of all lowercase "websocket" - 

   5.   The request MUST contain an |Upgrade| header field whose value
        MUST include the "websocket" keyword.

The registration is for "Websocket" (capital W). In practice "websocket" is used.

Although the interpretation of that is defined case insensitively for this RFC (which conflicts with general HTTP semantics where this is case sensitive). As part of RFC 8441, the IANA registry has been updated to also include "websocket" with a reference to 6455 and 8441

imo this errata should be held for update and the reference to "Websocket" removed at that time.

See also https://www.rfc-editor.org/errata/eid5453

This erratum is currently posted as "Reported". If necessary, please
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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