draft-ietf-httpbis-immutable-03.txt   draft-ietf-httpbis-immutable-latest.txt 
HTTP Working Group P. McManus HTTP Working Group P. McManus
Internet-Draft Mozilla Internet-Draft Mozilla
Intended status: Standards Track July 3, 2017 Intended status: Standards Track August 20, 2017
Expires: January 4, 2018 Expires: February 21, 2018
HTTP Immutable Responses HTTP Immutable Responses
draft-ietf-httpbis-immutable-03 draft-ietf-httpbis-immutable-03
Abstract Abstract
The immutable HTTP response Cache-Control extension allows servers to The immutable HTTP response Cache-Control extension allows servers to
identify resources that will not be updated during their freshness identify resources that will not be updated during their freshness
lifetime. This assures that a client never needs to revalidate a lifetime. This assures that a client never needs to revalidate a
cached fresh resource to be certain it has not been modified. cached fresh resource to be certain it has not been modified.
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 4, 2018. This Internet-Draft will expire on February 21, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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Thank you to Ben Maurer for partnership in developing and testing Thank you to Ben Maurer for partnership in developing and testing
this idea. Thank you to Amos Jeffries for help with proxy this idea. Thank you to Amos Jeffries for help with proxy
interactions and to Mark Nottingham for help with the documentation. interactions and to Mark Nottingham for help with the documentation.
6. References 6. References
6.1. Normative References 6.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997, <https://www.rfc- DOI 10.17487/RFC2119, March 1997,
editor.org/info/rfc2119>. <http://www.rfc-editor.org/info/rfc2119>.
[RFC7232] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext Transfer [RFC7232] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext Transfer
Protocol (HTTP/1.1): Conditional Requests", RFC 7232, Protocol (HTTP/1.1): Conditional Requests", RFC 7232,
DOI 10.17487/RFC7232, June 2014, <https://www.rfc- DOI 10.17487/RFC7232, June 2014,
editor.org/info/rfc7232>. <http://www.rfc-editor.org/info/rfc7232>.
[RFC7234] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke, [RFC7234] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching", Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching",
RFC 7234, DOI 10.17487/RFC7234, June 2014, RFC 7234, DOI 10.17487/RFC7234, June 2014,
<https://www.rfc-editor.org/info/rfc7234>. <http://www.rfc-editor.org/info/rfc7234>.
6.2. Informative References 6.2. Informative References
[REQPERPAGE] [REQPERPAGE]
"HTTP Archive", n.d., "HTTP Archive", n.d.,
<http://httparchive.org/interesting.php#reqTotal>. <http://httparchive.org/interesting.php#reqTotal>.
Author's Address Author's Address
Patrick McManus Patrick McManus
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