Re: AD Review: draft-ietf-httpbis-incremental-03

Mark Nottingham <mnot@mnot.net> Fri, 21 November 2025 21:29 UTC

Received: by mail2.ietf.org (Postfix) id 1B7DE8E4C5EB; Fri, 21 Nov 2025 13:29:14 -0800 (PST)
Delivered-To: ietfarch-httpbisa-archive-bis2juki@mail2.ietf.org
Received: from localhost (localhost [127.0.0.1]) by mail2.ietf.org (Postfix) with ESMTP id 1A46B8E4C5EA for <ietfarch-httpbisa-archive-bis2Juki@mail2.ietf.org>; Fri, 21 Nov 2025 13:29:14 -0800 (PST)
X-Virus-Scanned: amavisd-new at ietf.org
X-Spam-Flag: NO
X-Spam-Score: -5.384
X-Spam-Level:
X-Spam-Status: No, score=-5.384 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.017, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: mail2.ietf.org (amavisd-new); dkim=pass (2048-bit key) header.d=w3.org header.b="a5E4PoEM"; dkim=pass (2048-bit key) header.d=w3.org header.b="IMWoNI+g"; dkim=pass (2048-bit key) header.d=mnot.net header.b="aurjWich"; dkim=pass (2048-bit key) header.d=messagingengine.com header.b="0/MsG0gW"
Received: from mail2.ietf.org ([166.84.6.31]) by localhost (mail2.ietf.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 16OVKlx-yX6Z for <ietfarch-httpbisa-archive-bis2Juki@mail2.ietf.org>; Fri, 21 Nov 2025 13:29:13 -0800 (PST)
Received: from mab.w3.org (mab.w3.org [IPv6:2600:1f18:7d7a:2700:d091:4b25:8566:8113]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail2.ietf.org (Postfix) with ESMTPS id A595E8E4C5E5 for <httpbisa-archive-bis2Juki@ietf.org>; Fri, 21 Nov 2025 13:29:13 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=w3.org; s=s1; h=Subject:To:References:Message-Id:Cc:Date:In-Reply-To:From: Mime-Version:Content-Type:Reply-To; bh=QqCWXnz2ZHXUQI/7BLvkGi2aqE/t7isJzKmLT6bEBXQ=; b=a5E4PoEMYSTuMv1KIarK5y046H k9hB83hNbzoSiaO7Y1rera6s1IGnXPCH+M6AmNtGH7GCjBdJ5tUHuzzJ2ABhSSVksI0VyKdw7io1k YtW0krEIyYuCOf+bjpnUJLPjhfXXN8jOvAyDTiYNDA71l1RpyZ1CGFp+/LOTC8mRMm0ZpWWwKxz2H yn6fks5XjGlBcU/bXg9P1d+1d7hwo8HEpKX3yFSUo38gF+3m75fCE7XUkTg51sTcA54ogKAMPOecN WrfIWCfBXyN4Ufpe5RgvvrmRXMUI+U0LazNrzVQcoGE56ThT0zmu3EwAUnAJrAHKj5Vli3xYaELPB QqYjIlZg==;
Received: from lists by mab.w3.org with local (Exim 4.96) (envelope-from <ietf-http-wg-request@listhub.w3.org>) id 1vMYfj-009CHq-39 for ietf-http-wg-dist@listhub.w3.org; Fri, 21 Nov 2025 21:28:03 +0000
Resent-Date: Fri, 21 Nov 2025 21:28:03 +0000
Resent-Message-Id: <E1vMYfj-009CHq-39@mab.w3.org>
Received: from ip-10-0-0-144.ec2.internal ([10.0.0.144] helo=pan.w3.org) by mab.w3.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from <mnot@mnot.net>) id 1vMYfh-009CGr-2z for ietf-http-wg@listhub.w3.internal; Fri, 21 Nov 2025 21:28:01 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=w3.org; s=s1; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: Mime-Version:Content-Type:Reply-To; bh=QqCWXnz2ZHXUQI/7BLvkGi2aqE/t7isJzKmLT6bEBXQ=; t=1763760481; x=1764624481; b=IMWoNI+gaKL++pgED69mInun0agp23VtAKktbIJLNRTkCsXeACLGkMXiyUptXmo2o2PrTwJoqwW RkU1YpLVfpgfLM2o+bRa7xuRWsAMJALwaZprrCsoKtVeL8BzSM75iftvEelICb1F0JvfSbIVkBf/l ++9iz9Ip4sx8cr/Az2qPDwOraZsc6Hj9gzn0Plm0xnRPAjSbhJ1aitzgyFbSp4XkYaslYOllPtQbO aUR/UNGH4CUPivL3pExiiSXpxBpLFBlFcBsvL7tskFUb1SlZrncQ8X8pvJFg6JQYR8hYEZFXxyz9C DSe5v8fka2kytKQD0JzrxO2peYldkpFVzRLQ==;
Received-SPF: pass (pan.w3.org: domain of mnot.net designates 103.168.172.155 as permitted sender) client-ip=103.168.172.155; envelope-from=mnot@mnot.net; helo=fhigh-a4-smtp.messagingengine.com;
Received: from fhigh-a4-smtp.messagingengine.com ([103.168.172.155]) by pan.w3.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from <mnot@mnot.net>) id 1vMYfh-001Nw2-0i for ietf-http-wg@w3.org; Fri, 21 Nov 2025 21:28:01 +0000
Received: from phl-compute-03.internal (phl-compute-03.internal [10.202.2.43]) by mailfhigh.phl.internal (Postfix) with ESMTP id 022A514001C4; Fri, 21 Nov 2025 16:27:58 -0500 (EST)
Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-03.internal (MEProxy); Fri, 21 Nov 2025 16:27:58 -0500
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mnot.net; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm1; t=1763760477; x=1763846877; bh=QqCWXnz2ZHXUQI/7BLvkGi2aqE/t7isJzKmLT6bEBXQ=; b= aurjWichbZU1agW9ohssEVQtt4zdJp+s9tiqOJZsoQSGcdClt20VkZipts0OO+g0 JTJ7EXSKXBzkOrju0GxT/22wJeK7Yk7VznuNIibwBUf6orz4HPUG7fLs/q1K03Kl S/bpr+XuDLpnS6JrUw4a6nHLqtAQYtORiGjTzTxdF2muGgYrzewOsa0l3qGRPf9S X58PamWF0402X2JUXPF28Jh6w6VfrKWnPIxoMcoxDgq22ZWmDEWSiPYGcU9RrIIN O83ibhUgNdr7SsQhYd+ImuiBVmtuPRwVTOCe6NQSRRoWRUX3EqVb/bv1jXB37ogT un2Ewud8W1xDgvY2kMQfPQ==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1763760477; x= 1763846877; bh=QqCWXnz2ZHXUQI/7BLvkGi2aqE/t7isJzKmLT6bEBXQ=; b=0 /MsG0gW4HE/KlDapskZGt/nxy6tBWihA77ImLjzJJqYUTcQFYP6fjiXbjYVB8+RB MazbC9kajVBDNaqYGChrfGbqCGNdtcMvwHBg2JKAzHVDJm0//elRcYDTnxiI3xe0 juHyYYMkXQaInqDA/HCCHEPk2224mu7+LO0YPAN/4aPDaR2fOb4x4RcBwIq9Lw3/ 7J12mLh/e9uCRBLcbKkP1NlPbMb8HZJlPErsnWBCgnSAmp6xKInySz2azEEK1rr3 63TGQ15XI/E/RbOCRUwmwB0/rgnlW+jMMSTVn71RSVuhLvdhs7Mx85PFn1zfAUnL 2Vwl+wO5C/TwRIk35WNtQ==
X-ME-Sender: <xms:XdkgaaMtnhjUoL6MyNXrWpnI65Y4QAtuuxKOtGuKcxHA9hMV4rhZjA> <xme:XdkgaVTNSMbgcNsicDILLKQfNTptxUukIAhKY_d_9BEsMs7yK9zPxJv7H8FOq0NtR G8xLMHRcyzOcbuckvZs2YJ_Gmk5JlIyxm8w2xwbeDnnATuhTgS4QQ>
X-ME-Received: <xmr:XdkgaUDu5wV12pUR-0Q4OOJqZfCb2NvR-nT_1PAFeBYdeVvr2KcISI6dU5dyziNoAdUEyItsFrAKaaCNed0GsKXQxhzFDCM4-f1oVk4lz3oIoCh7VFOq8w>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdeggddvfedutdegucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurheptggguffhjgffvefgkfhfvffosehtqhhmtdhhtdejnecuhfhrohhmpeforghrkhcu pfhothhtihhnghhhrghmuceomhhnohhtsehmnhhothdrnhgvtheqnecuggftrfgrthhtvg hrnhepfefhhfelleejjeejieekhfejfeeiheetgeejgffhudegveeigeehgefftdetudet necuffhomhgrihhnpehmnhhothdrnhgvthenucevlhhushhtvghrufhiiigvpedtnecurf grrhgrmhepmhgrihhlfhhrohhmpehmnhhothesmhhnohhtrdhnvghtpdhnsggprhgtphht thhopedvpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehmsghishhhohhpsegvvh gvqhhuvghfohhurdgsvgdprhgtphhtthhopehivghtfhdqhhhtthhpqdifghesfiefrdho rhhg
X-ME-Proxy: <xmx:XdkgaciQYd-PD2oqqKI25EElU8hP-FDh8NFMOOrd28MtD6LfF2ve1w> <xmx:XdkgaVNLR-GiVtuPbrcu0P0NXA7zMGEE7nv1fHGj54sU7KA0di1Vvg> <xmx:XdkgaV7tZYuc__wKDYiVWcaQpLFz58Eoh5ascdEG7yF-AdPJSCnLMA> <xmx:Xdkgab0CFy7ABGrvADQieEJewdgSFi8oeILw4E7TUOyiwcbvrbI4DQ> <xmx:XdkgaXGQUhaJfTqtNNl0Omxq75-lDE83hUCpUJjXn0Er_JHCCWsU_h1n>
Feedback-ID: ie6694242:Fastmail
Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 21 Nov 2025 16:27:56 -0500 (EST)
Content-Type: text/plain; charset="utf-8"
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.200.81.1.6\))
From: Mark Nottingham <mnot@mnot.net>
In-Reply-To: <IA0PPF726CD7A1F5E1E2009C8AAE3D50168DAD5A@IA0PPF726CD7A1F.namprd22.prod.outlook.com>
Date: Sat, 22 Nov 2025 08:27:52 +1100
Cc: HTTP Working Group <ietf-http-wg@w3.org>
Content-Transfer-Encoding: quoted-printable
Message-Id: <8AD9C519-72ED-4288-B12A-6E8E05D6A4B9@mnot.net>
References: <IA0PPF726CD7A1F5E1E2009C8AAE3D50168DAD5A@IA0PPF726CD7A1F.namprd22.prod.outlook.com>
To: Mike Bishop <mbishop@evequefou.be>
X-Mailer: Apple Mail (2.3864.200.81.1.6)
X-W3C-Hub-DKIM-Status: validation passed: (address=mnot@mnot.net domain=mnot.net), signature is good
X-W3C-Hub-DKIM-Status: validation passed: (address=mnot@mnot.net domain=messagingengine.com), signature is good
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, DMARC_PASS=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: pan.w3.org 1vMYfh-001Nw2-0i ff8c9274b4e035ea4668b08a9e968a75
X-Original-To: ietf-http-wg@w3.org
Subject: Re: AD Review: draft-ietf-httpbis-incremental-03
Archived-At: <https://www.w3.org/mid/8AD9C519-72ED-4288-B12A-6E8E05D6A4B9@mnot.net>
Resent-From: ietf-http-wg@w3.org
X-Mailing-List: <ietf-http-wg@w3.org> archive/latest/53567
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/email/>
List-Post: <mailto:ietf-http-wg@w3.org>
List-Unsubscribe: <mailto:ietf-http-wg-request@w3.org?subject=unsubscribe>

> On 22 Nov 2025, at 7:05 am, Mike Bishop <mbishop@evequefou.be> wrote:
> 
> When discussing this fail-fast behavior, it might also be worth clarifying that this applies exclusively to an intermediary which is aware of and supports this field. Obvious, but otherwise we have a MUST that could be read as directed to a non-implementing party.

FWIW I'll +1 this (all hats off) -- people often forget this.

Cheers,

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