'Out-Of-Band' Content Coding for HTTP
draft-reschke-http-oob-encoding-10

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Network Working Group                                         J. Reschke
Internet-Draft                                                greenbytes
Intended status: Standards Track                               S. Loreto
Expires: June 23, 2017                                          Ericsson
                                                       December 20, 2016

                 'Out-Of-Band' Content Coding for HTTP
                   draft-reschke-http-oob-encoding-10

Abstract

   This document describes an Hypertext Transfer Protocol (HTTP) content
   coding that can be used to describe the location of a secondary
   resource that contains the payload.

Editorial Note (To be removed by RFC Editor before publication)

   Distribution of this document is unlimited.  Although this is not a
   work item of the HTTPbis Working Group, comments should be sent to
   the Hypertext Transfer Protocol (HTTP) mailing list at
   ietf-http-wg@w3.org [1], which may be joined by sending a message
   with subject "subscribe" to ietf-http-wg-request@w3.org [2].

   Discussions of the HTTPbis Working Group are archived at
   <http://lists.w3.org/Archives/Public/ietf-http-wg/>.

   XML versions, latest edits, and issue tracking for this document are
   available from
   <https://github.com/EricssonResearch/Blind-Cache-Drafts> and
   <http://greenbytes.de/tech/webdav/#draft-reschke-http-oob-encoding>.

   The changes in this draft are summarized in Appendix D.10.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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Reschke & Loreto          Expires June 23, 2017                 [Page 1]
Internet-Draft    'Out-Of-Band' Content Coding for HTTP    December 2016

   This Internet-Draft will expire on June 23, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Notational Conventions . . . . . . . . . . . . . . . . . . . .  4
   3.  'Out-Of-Band' Content Coding . . . . . . . . . . . . . . . . .  4
     3.1.  Overview . . . . . . . . . . . . . . . . . . . . . . . . .  4
     3.2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . .  5
     3.3.  Processing Steps . . . . . . . . . . . . . . . . . . . . .  6
     3.4.  Examples . . . . . . . . . . . . . . . . . . . . . . . . .  7
       3.4.1.  Basic Example  . . . . . . . . . . . . . . . . . . . .  7
       3.4.2.  Example for an attempt to use 'out-of-band'
               cross-origin . . . . . . . . . . . . . . . . . . . . .  9
       3.4.3.  Example involving an encrypted resource  . . . . . . .  9
       3.4.4.  Relation to Content Negotiation  . . . . . . . . . . . 11
   4.  Content Codings and Range Requests . . . . . . . . . . . . . . 12
   5.  Feature Discovery  . . . . . . . . . . . . . . . . . . . . . . 12
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 13
     6.1.  Content Modifications  . . . . . . . . . . . . . . . . . . 13
     6.2.  Content Stealing . . . . . . . . . . . . . . . . . . . . . 13
     6.3.  Use in Requests  . . . . . . . . . . . . . . . . . . . . . 13
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 13
     7.1.  Content Coding: out-of-band  . . . . . . . . . . . . . . . 14
     7.2.  Internet Media Type: application/oob-stream  . . . . . . . 14
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     8.1.  Normative References . . . . . . . . . . . . . . . . . . . 15
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 16
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