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[Webpush] Status Code for Negative Acknowledgements #49

Brian Raymor <Brian.Raymor@microsoft.com> Thu, 15 October 2015 03:15 UTC

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From: Brian Raymor <Brian.Raymor@microsoft.com>
To: "webpush@ietf.org" <webpush@ietf.org>
Thread-Topic: Status Code for Negative Acknowledgements #49
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Date: Thu, 15 Oct 2015 03:15:18 +0000
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Subject: [Webpush] Status Code for Negative Acknowledgements #49
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For - https://github.com/webpush-wg/webpush-protocol/issues/49 - I've submitted a pull request to propose a 512 (Expired Resource) status code - https://github.com/webpush-wg/webpush-protocol/pull/50

Based on the Hypertext Transfer Protocol (HTTP) Status Code Registry -  http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml - 509 is the next unassigned 5XX status code, but there may be a conflict with unregistered use of 509:

https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#5xx_Server_Error

  509 Bandwidth Limit Exceeded (Apache bw/limited extension)
  This status code is not specified in any RFCs. Its use is unknown.

510 and 511 are registered, skipping 509 which suggests an earlier attempt to avoid potential conflicts. 






...Brian

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