From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id CJHTJIRJuV7reQAA0tVLHw (envelope-from ) for ; Mon, 11 May 2020 12:48:04 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id OKfmIJJJuV4ABQAA1q6Kng (envelope-from ) for ; Mon, 11 May 2020 12:48:18 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 3C033940CFA for ; Mon, 11 May 2020 12:48:16 +0000 (UTC) Received: from localhost ([::1]:36280 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jY7qy-000325-T3 for larch@yhetil.org; Mon, 11 May 2020 08:48:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40322) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jY7qk-00030M-Cr for bug-guix@gnu.org; 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Mon, 11 May 2020 08:47:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:37252) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jY7qP-00015s-Mw for 37207@debbugs.gnu.org; Mon, 11 May 2020 08:47:42 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:34600) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jY7qK-0001fj-8v; Mon, 11 May 2020 08:47:36 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=37720 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jY7qJ-0005yI-JH; Mon, 11 May 2020 08:47:36 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <875zmhliqj.fsf@gnu.org> <87o8qwg3te.fsf@cbaines.net> <874ksoaym3.fsf@gnu.org> <87imh2pxsc.fsf@cbaines.net> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 23 =?UTF-8?Q?Flor=C3=A9al?= an 228 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Mon, 11 May 2020 14:47:34 +0200 In-Reply-To: <87imh2pxsc.fsf@cbaines.net> (Christopher Baines's message of "Mon, 11 May 2020 11:32:19 +0100") Message-ID: <873686iqop.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 37207@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 X-Spam-Score: -1.01 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Scan-Result: default: False [-1.01 / 13.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; GENERIC_REPUTATION(0.00)[-0.5399482553882]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.51.188.0/24:c]; IP_REPUTATION_HAM(0.00)[asn: 22989(0.07), country: US(-0.00), ip: 209.51.188.17(-0.54)]; DWL_DNSWL_FAIL(0.00)[209.51.188.17:server fail]; MX_GOOD(-0.50)[cached: eggs.gnu.org]; RCPT_COUNT_TWO(0.00)[2]; MAILLIST(-0.20)[mailman]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; RCVD_IN_DNSWL_FAIL(0.00)[209.51.188.17:server fail]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:22989, ipnet:209.51.188.0/24, country:US]; TAGGED_FROM(0.00)[larch=yhetil.org]; FROM_NEQ_ENVFROM(0.00)[ludo@gnu.org,bug-guix-bounces@gnu.org]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; URIBL_BLOCKED(0.00)[cbaines.net:email]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[gnu.org]; HAS_LIST_UNSUB(-0.01)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.51.188.17:from]; RCVD_COUNT_SEVEN(0.00)[9]; FORGED_SENDER_MAILLIST(0.00)[] X-TUID: gd/7x7WSy7WM Hi, Christopher Baines skribis: > So I think removing the Last-Modified header from the responses will fix > the issue with the Repology fetcher (as it will stop thinking it's > already fetch the file, since it was last modified in 1970), instead it > will just always process the file. > > Removing the Last-Modified header, and maybe the ETag as well from > responses should avoid the issue with web browsers using a cached > version of the page when they probably shouldn't. It would prevent client-side caching altogether. So perhaps we can do that as a stopgap (and it has the advantage of requiring only a tiny config change). Eventually, it=E2=80=99d be nice to have something better, like one of the = Etag patches discussed upthread. Thanks, Ludo=E2=80=99.