[hybi] [Technical Errata Reported] RFC6455 (3433)

RFC Errata System <rfc-editor@rfc-editor.org> Fri, 21 December 2012 00:11 UTC

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From: RFC Errata System <rfc-editor@rfc-editor.org>
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Date: Thu, 20 Dec 2012 16:02:31 -0800
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Subject: [hybi] [Technical Errata Reported] RFC6455 (3433)
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The following errata report has been submitted for RFC6455,
"The WebSocket Protocol".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=6455&eid=3433

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Type: Technical
Reported by: Eric Lawrence <e_lawrence@hotmail.com>

Section: 11.3.2

Original Text
-------------
However, the |Sec-WebSocket-Extensions| header field MUST NOT appear more than once in an HTTP response.


Corrected Text
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The |Sec-WebSocket-Extensions| header field MAY appear multiple times in an HTTP response (which is logically the same as a single |Sec-WebSocket-Extensions| header field that contains all values).


Notes
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Section 4.2.2 Step 5 subpart 6 (top of page 25) clearly explains that this header field may appear multiple times in the server's response: "If multiple extensions are to be used, they can all be listed in a single |Sec-WebSocket-Extensions| header field or split between multiple instances of the |Sec-WebSocket-Extensions| header field. This completes the server's handshake..."

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