Re: I-D Action: draft-ietf-httpbis-cache-header-01.txt

Mark Nottingham <mnot@mnot.net> Mon, 04 November 2019 05:35 UTC

Return-Path: <ietf-http-wg-request+bounce-httpbisa-archive-bis2juki=lists.ie@listhub.w3.org>
X-Original-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Delivered-To: ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C83FF120013 for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Sun, 3 Nov 2019 21:35:56 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.75
X-Spam-Level:
X-Spam-Status: No, score=-2.75 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, MAILING_LIST_MULTI=-1, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=mnot.net header.b=cl5J/HAC; dkim=pass (2048-bit key) header.d=messagingengine.com header.b=E8zDtKzd
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jE0-WcaUIPrn for <ietfarch-httpbisa-archive-bis2Juki@ietfa.amsl.com>; Sun, 3 Nov 2019 21:35:54 -0800 (PST)
Received: from frink.w3.org (frink.w3.org [IPv6:2603:400a:ffff:804:801e:34:0:38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 34EB812006E for <httpbisa-archive-bis2Juki@lists.ietf.org>; Sun, 3 Nov 2019 21:35:54 -0800 (PST)
Received: from lists by frink.w3.org with local (Exim 4.89) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1iRUzt-0004gb-P4 for ietf-http-wg-dist@listhub.w3.org; Mon, 04 Nov 2019 05:33:49 +0000
Resent-Date: Mon, 04 Nov 2019 05:33:49 +0000
Resent-Message-Id: <E1iRUzt-0004gb-P4@frink.w3.org>
Received: from titan.w3.org ([2603:400a:ffff:804:801e:34:0:4c]) by frink.w3.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from <mnot@mnot.net>) id 1iRUzr-0004fq-KT for ietf-http-wg@listhub.w3.org; Mon, 04 Nov 2019 05:33:47 +0000
Received: from wout1-smtp.messagingengine.com ([64.147.123.24]) by titan.w3.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <mnot@mnot.net>) id 1iRUzo-0000e6-L6 for ietf-http-wg@w3.org; Mon, 04 Nov 2019 05:33:47 +0000
Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id B92CF2EA for <ietf-http-wg@w3.org>; Mon, 4 Nov 2019 00:33:40 -0500 (EST)
Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Mon, 04 Nov 2019 00:33:40 -0500
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mnot.net; h=from :content-type:content-transfer-encoding:mime-version:subject :date:references:to:in-reply-to:message-id; s=fm1; bh=etdl6CK61d yTahmbpJuaMiDsSVpXcqWGEc8m4Wt6yTk=; b=cl5J/HACIisENvHJtg+wRwqYnV 5hPTP/LL0ZUC7TPIUjGE1TW+s/K+5nf3pgpUexFKQKWMClGQzgWREaY7ekcyIoPl x1SOCuXc38EreCfJJJz73ex9in112vid8n6rQNh0/9oH2G+jkUqFpGXmoJ2vT/1/ c6PoxDzVeMfAcPB/WxYEU8iAqg2oFw8ASGVBeENvfbkxoyuZEUkvnuCin1izbS3x cd3DCPdkgr7LdzGaA2PhCBQsYp1rN3crNmz8UoIMgGyBp4JsgEvG9CYLB9XVFa9w zzI9CTPKZlb1+NW7WKw9G/jLqC+xOO1COwsTocQafFQxyGTizXihiIf+W19Q==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=etdl6CK61dyTahmbpJuaMiDsSVpXcqWGEc8m4Wt6y Tk=; b=E8zDtKzdW+Oo8eSGDv0LbqaVbRBlmdoIgUqIgVTBAhJAPygaoI7VXNZLs KkVMN+2eqXEQfDnR2P5g5/gQOkK6HvESvUGn4JL61ZlmgEOx0SkCW1rDc8aHAQvW uOpmPak59RA64oW6sdJJnXY9QcoXLY4OiHIayzjRmi/gZF8ivdHsBCOmTCky4j4f wWLgmK/qvyigBOHA72UfBqUqs7zqaAuSRsOYIBjmzbKjN3B1H1pmPMGaM1dkLUb9 jaaYU2qOstwBLp0m3zP9/nNELY1PAHd3Xuaa8PpckbR9/uhCRFTiT/LefdK+TcAE 6cM7wYJLToi6swjVW+xYMfi29aOig==
X-ME-Sender: <xms:M7i_XXSIjIpWp8X3EhbPbKPPSOVTi56qQmCNB1TB6Qy6qFwmBpm6CQ>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedufedrudduvddgkedvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhtgfgggfuffhfvfgjkffosehtqh hmtdhhtddvnecuhfhrohhmpeforghrkhcupfhothhtihhnghhhrghmuceomhhnohhtsehm nhhothdrnhgvtheqnecuffhomhgrihhnpehivghtfhdrohhrghdpmhhnohhtrdhnvghtne cukfhppeduudelrddujedrudehkedrvdehudenucfrrghrrghmpehmrghilhhfrhhomhep mhhnohhtsehmnhhothdrnhgvthenucevlhhushhtvghrufhiiigvpedt
X-ME-Proxy: <xmx:M7i_XdBGg0QADHqvsxbX9pm2un3GueGMye9Xi_Udk5HIW4oC_duvng> <xmx:M7i_XX3z7oYvzVJj47dBBveamSPII19KIi9-TIRDKKeZnKlARC4LpQ> <xmx:M7i_XbUDuw6sG0-igGIcLAfXvi2NoLVekTh6dmLbK3yyud8BCx81Yw> <xmx:NLi_Xdg3wSllAa90lJwSvZkRMR8nzUa4Ykb6vfKMsiNxnzsrgLY52g>
Received: from macbook-pro.mnot.net (unknown [119.17.158.251]) by mail.messagingengine.com (Postfix) with ESMTPA id 105F1306005C for <ietf-http-wg@w3.org>; Mon, 4 Nov 2019 00:33:38 -0500 (EST)
From: Mark Nottingham <mnot@mnot.net>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3601.0.10\))
Date: Mon, 04 Nov 2019 16:33:36 +1100
References: <157284502946.13485.12961295240993470799@ietfa.amsl.com>
To: ietf-http-wg@w3.org
In-Reply-To: <157284502946.13485.12961295240993470799@ietfa.amsl.com>
Message-Id: <E937222A-D389-4EE7-9486-0105DF4F4122@mnot.net>
X-Mailer: Apple Mail (2.3601.0.10)
Received-SPF: pass client-ip=64.147.123.24; envelope-from=mnot@mnot.net; helo=wout1-smtp.messagingengine.com
X-W3C-Hub-Spam-Status: No, score=-9.8
X-W3C-Hub-Spam-Report: BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, W3C_AA=-1, W3C_DB=-1, W3C_IRA=-1, W3C_IRR=-3, W3C_WL=-1
X-W3C-Scan-Sig: titan.w3.org 1iRUzo-0000e6-L6 9f37d1b69510c5d867da6cbe1ad37bde
X-Original-To: ietf-http-wg@w3.org
Subject: Re: I-D Action: draft-ietf-httpbis-cache-header-01.txt
Archived-At: <https://www.w3.org/mid/E937222A-D389-4EE7-9486-0105DF4F4122@mnot.net>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/37107
X-Loop: ietf-http-wg@w3.org
Resent-Sender: ietf-http-wg-request@w3.org
Precedence: list
List-Id: <ietf-http-wg.w3.org>
List-Help: <https://www.w3.org/Mail/>
List-Post: <mailto:ietf-http-wg@w3.org>
List-Unsubscribe: <mailto:ietf-http-wg-request@w3.org?subject=unsubscribe>

This revision refactors the Cache header, as discussed previously. It's somewhat tentative, but I wanted to get some initial feedback before going too far down this path.

Best way to get acquainted with it is to look at the examples, down near the bottom.

Cheers,


> On 4 Nov 2019, at 4:23 pm, internet-drafts@ietf.org wrote:
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Hypertext Transfer Protocol WG of the IETF.
> 
>        Title           : The Cache-Status HTTP Response Header
>        Author          : Mark Nottingham
> 	Filename        : draft-ietf-httpbis-cache-header-01.txt
> 	Pages           : 8
> 	Date            : 2019-11-03
> 
> Abstract:
>   To aid debugging, HTTP caches often append headers to a response
>   detailing how they handled the request.  This specification codifies
>   that practice and updates it for HTTP's current caching model.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-httpbis-cache-header/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-httpbis-cache-header-01
> https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cache-header-01
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-httpbis-cache-header-01
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> 

--
Mark Nottingham   https://www.mnot.net/