From unknown Sat Jun 21 03:21:50 2025 X-Loop: help-debbugs@gnu.org Subject: bug#37044: 27.0.50; url-http breaks behind proxy when reusing existing connection Resent-From: David Ringo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 16 Aug 2019 04:50:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 37044 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 37044@debbugs.gnu.org X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.156593096912952 (code B ref -1); Fri, 16 Aug 2019 04:50:02 +0000 Received: (at submit) by debbugs.gnu.org; 16 Aug 2019 04:49:29 +0000 Received: from localhost ([127.0.0.1]:52910 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyUB6-0003Mk-DG for submit@debbugs.gnu.org; Fri, 16 Aug 2019 00:49:29 -0400 Received: from lists.gnu.org ([209.51.188.17]:59315) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyRAs-00053T-UB for submit@debbugs.gnu.org; Thu, 15 Aug 2019 21:37:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56726) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hyRAq-0008MR-Oy for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:37:02 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HTML_MESSAGE,URIBL_BLOCKED autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hyRAo-0004cB-Ef for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:37:00 -0400 Received: from mail-wm1-x341.google.com ([2a00:1450:4864:20::341]:54196) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hyRAo-0004bb-6R for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:36:58 -0400 Received: by mail-wm1-x341.google.com with SMTP id 10so2773628wmp.3 for ; Thu, 15 Aug 2019 18:36:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=g/Ksl+ztci0yZ+aI/sKlHZUxlwjnUUApgwXSNBjzs5w=; b=Fp+wh2r+wCTfViBP/n6hXOooEIhnqCHH2FuAS+cR24CHLOCYM5pq+5L+EC92bwjOdw 5Zzpu/RpmCrDYlaGKdbinTOwZMArR+aBmGKmqC2jTP4FKU+xyd8LTd4wjTa2VtHG2+Nz No5C0flpp2UZLGk1UjAiTwKpLnLrQ5WieZtK4pYigXUdJIQHfPmm34Kl9AO1khpYhy+O 8wRS8KiIvYHo8g+gTTCZB8n+lg8wm87ZyzKdjEEPbHuzBqdNP1KkxDM79FGA4nCrlo4m tiYAGj9/LBjGhfERoMkZIGgvRmC77Dv5I/yJADfIT5GcTZVOSer+kouKutwhNdQClC0D g5RQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=g/Ksl+ztci0yZ+aI/sKlHZUxlwjnUUApgwXSNBjzs5w=; b=lyH7u0JiRhvYuet8cZTqHXTwwBFAmJTH3n5pmrY6Vg/hxt1fTogW5Kk/vr3HFvWSeX y7XLQI/CUdfjqycbhhxZ2jHDJikDMKtCZXIEZi1Dc8iT7P0o/f/qtmflIaZY+l7Wz7g6 VBvqOmM5sZUkjFH+0dSlTcqfjZ/4yXUm0povTRi3b7R+KDX+hY1bVjW3mQKMhgbUlO8Q SUmpaDndoM5KokNzZHkTznCm3CF06k+O20d+Vjtgf8awZV0Ki3lQV2bni8rpiMNOs9uB 76req63TTZvLifUWsjGxe++2PaHGc/I5Rjkb7B2mLoLZVGPXHl61ioEdtI9ckZpwXd2a IpZA== X-Gm-Message-State: APjAAAXsdFJ3oGzZTQdC0zPFns5rbFXb1Fw7M1WICzdbES/WJlShNeDD 152JclikgfFkOFfQW2Qr9RId2AMciPRSplLeb0foTxMX0/U= X-Google-Smtp-Source: APXvYqwpE62Nz4vFJVUhtn0jMVDBKkWvO+gwkA6GiKFDHeZuQPuCTxGK5QMsIfXNgJ5eEW2X4hFyh0L43ku2mAXcibA= X-Received: by 2002:a7b:cf2d:: with SMTP id m13mr4774399wmg.120.1565919416203; Thu, 15 Aug 2019 18:36:56 -0700 (PDT) MIME-Version: 1.0 From: David Ringo Date: Thu, 15 Aug 2019 19:36:44 -0600 Message-ID: Content-Type: multipart/alternative; boundary="0000000000008cbf9b05903206a3" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::341 X-Spam-Score: -1.3 (-) X-Mailman-Approved-At: Fri, 16 Aug 2019 00:49:27 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) --0000000000008cbf9b05903206a3 Content-Type: text/plain; charset="UTF-8" When trying to make more than one HTTPS request to the same host via `url-retrieve-synchronously' behind my work proxy, only the first request succeeds. Depending on the host, subsequent requests result in 400/404/302 and perhaps a couple other response codes. There's some minimal code below that can be run with emacs -Q, but I don't know how to replicate the proxy. It seems that commit 84613dae5c3 is at least partially responsible for this. It's a small change to `url-https-proxy-after-change-function' that binds `url-http-proxy' around the call to `url-http-create-request'. Without that binding, I see no errors. I tested this both in 26.2.90 which does not include that commit, and the revision in this report by simply redefining the function to the older version. This happens both when `url-proxy-services' is set manually and when it is set from environment variables. I'm not sure if this is a problem with Emacs, the proxy I'm behind, or if there is some configuration I should be aware of that already addresses this. Please let me know if there's any other useful information I can provide. Sample code and the corresponding url-http buffer headers follow. The specific URLs don't seem to matter as long they are HTTPS. The optional arguments also don't seem to make a difference. - David Code: (url-retrieve-synchronously "https://xkcd.com/1/") (url-retrieve-synchronously "https://xkcd.com/2/") First request (success): HTTP/1.1 200 OK Server: nginx Content-Type: text/html; charset=UTF-8 Last-Modified: Thu, 15 Aug 2019 11:24:39 GMT Expires: Thu, 15 Aug 2019 21:22:11 GMT Cache-Control: max-age=300 Content-Length: 3012 Accept-Ranges: bytes Date: Fri, 16 Aug 2019 01:32:01 GMT Via: 1.1 varnish Age: 142 Connection: keep-alive X-Served-By: cache-mdw17348-MDW X-Cache: HIT X-Cache-Hits: 1 X-Timer: S1565919121.298692,VS0,VE0 Vary: Accept-Encoding Second request (failuer): HTTP/1.1 400 Bad Request Server: nginx Content-Type: text/html; charset=UTF-8 Content-Length: 166 Accept-Ranges: bytes Date: Fri, 16 Aug 2019 01:32:01 GMT Via: 1.1 varnish Connection: keep-alive X-Served-By: cache-mdw17348-MDW X-Cache: MISS X-Cache-Hits: 0 X-Timer: S1565919121.349321,VS0,VE26 In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu) of 2019-08-07 built on slartibartfast Repository revision: d5622eb6fff94714c5d5a64c98c5e02bc1be478c Repository branch: master Windowing system distributor 'Fedora Project', version 11.0.12005000 System Description: Fedora 30 (Workstation Edition) Recent messages: Making completion list... Quit Note: file is write protected View mode: type C-h for help, h for commands, q to quit. previous-line: Beginning of buffer [2 times] Mark saved where search started Note: file is write protected View mode: type C-h for help, C-h m for commands, M-x View-quit to quit. Quit [3 times] Mark saved where search started Quit Configured using: 'configure --with-imagemagick --with-modules --with-x-toolkit=no' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF XFT ZLIB OLDXMENU X11 XDBE XIM MODULES THREADS PDUMPER LCMS2 GMP Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Info Minor modes in effect: tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t line-number-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message dired dired-loaddefs format-spec rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail rmail-loaddefs text-property-search time-date mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader sendmail goto-addr thingatpt mule-util jka-compr info noutline outline easy-mmode view help-mode easymenu misearch multi-isearch mail-utils gnutls network-stream url-cache url-http url-auth mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr url-gw nsm rmc puny url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util url-parse auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json subr-x map seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib url-vars mailcap tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting x multi-tty make-network-process emacs) Memory information: ((conses 16 76232 12727) (symbols 48 8198 1) (strings 32 28196 1967) (string-bytes 1 800056) (vectors 16 13427) (vector-slots 8 162016 12678) (floats 8 43 388) (intervals 56 1044 0) (buffers 992 19)) --0000000000008cbf9b05903206a3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
When trying to make more than one HTTPS request to th= e same host via `url-retrieve-synchronously' behind my work proxy, only= the first request succeeds.=C2=A0 Depending on the host, subsequent reques= ts result in 400/404/302 and perhaps a couple other response codes.=C2=A0 T= here's some minimal code below that can be run with emacs -Q, but I don= 't know how to replicate the proxy.

It seems t= hat commit=C2=A084613dae5c3 is at least partially responsible for this.=C2= =A0 It's a small change to `url-https-proxy-after-change-function' = that binds `url-http-proxy' around the call to `url-http-create-request= '.=C2=A0 Without that binding, I see no errors.=C2=A0 I tested this bot= h in 26.2.90 which does not include that commit, and the revision in this r= eport by simply redefining the function to the older version.
This happens both when `url-proxy-services' is set manually= and when it is set from environment variables.

I&= #39;m not sure if this is a problem with Emacs, the proxy I'm behind, o= r if there is some configuration I should be aware of that already addresse= s this.=C2=A0 Please let me know if there's any other useful informatio= n I can provide.

Sample code and the corresponding= url-http buffer headers follow.=C2=A0 The specific URLs don't seem to = matter as long they are HTTPS.=C2=A0 The optional arguments also don't = seem to make a difference.

- David

<= /div>
Code:
(url-retrieve-synchronously "https://xkcd.com/1/")
(url-retrieve= -synchronously "https://xkcd.com/2/")



In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu)
=C2=A0of 20= 19-08-07 built on slartibartfast
Repository revision: d5622eb6fff94714c5= d5a64c98c5e02bc1be478c
Repository branch: master
Windowing system dis= tributor 'Fedora Project', version 11.0.12005000
System Descript= ion: Fedora 30 (Workstation Edition)

Recent messages:
Making comp= letion list...
Quit
Note: file is write protected
View mode: type = C-h for help, h for commands, q to quit.
previous-line: Beginning of buf= fer [2 times]
Mark saved where search started
Note: file is write pro= tected
View mode: type C-h for help, C-h m for commands, M-x View-quit t= o quit.
Quit [3 times]
Mark saved where search started
Quit
Con= figured using:
=C2=A0'configure --with-imagemagick --with-modules --= with-x-toolkit=3Dno'

Configured features:
XPM JPEG TIFF GIF P= NG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB
NOTIFY INOTIFY ACL LIB= SELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT
LIBOTF XFT ZLIB OLDXME= NU X11 XDBE XIM MODULES THREADS PDUMPER LCMS2 GMP

Important settings= :
=C2=A0 value of $LANG: en_US.UTF-8
=C2=A0 value of $XMODIFIERS: @im= =3Dibus
=C2=A0 locale-coding-system: utf-8-unix

Major mode: Info<= br>
Minor modes in effect:
=C2=A0 tooltip-mode: t
=C2=A0 global-el= doc-mode: t
=C2=A0 electric-indent-mode: t
=C2=A0 mouse-wheel-mode: t=
=C2=A0 tool-bar-mode: t
=C2=A0 menu-bar-mode: t
=C2=A0 file-name-= shadow-mode: t
=C2=A0 global-font-lock-mode: t
=C2=A0 font-lock-mode:= t
=C2=A0 blink-cursor-mode: t
=C2=A0 auto-composition-mode: t
=C2= =A0 auto-encryption-mode: t
=C2=A0 auto-compression-mode: t
=C2=A0 bu= ffer-read-only: t
=C2=A0 line-number-mode: t
=C2=A0 transient-mark-mo= de: t

Load-path shadows:
None found.

Features:
(shadow = sort mail-extr emacsbug message dired dired-loaddefs format-spec
rfc822 = mml mml-sec epa derived epg epg-config gnus-util rmail
rmail-loaddefs te= xt-property-search time-date mm-decode mm-bodies
mm-encode mailabbrev gm= m-utils mailheader sendmail goto-addr thingatpt
mule-util jka-compr info= noutline outline easy-mmode view help-mode
easymenu misearch multi-isea= rch mail-utils gnutls network-stream
url-cache url-http url-auth mail-pa= rse rfc2231 rfc2047 rfc2045 mm-util
ietf-drums mail-prsvr url-gw nsm rmc= puny url url-proxy url-privacy
url-expand url-methods url-history url-c= ookie url-domsuf url-util
url-parse auth-source cl-seq eieio eieio-core = cl-macs eieio-loaddefs
password-cache json subr-x map seq byte-opt gv by= tecomp byte-compile
cconv cl-loaddefs cl-lib url-vars mailcap tooltip el= doc electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-= win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fr= inge
tabulated-list replace newcomment text-mode elisp-mode lisp-modeprog-mode register page menu-bar rfn-eshadow isearch timer select
scrol= l-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors= frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan = thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian= slovak czech european ethiopic indian cyrillic
chinese composite charsc= ript charprop case-table epa-hook jka-cmpr-hook
help simple abbrev obarr= ay minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroe= xp files text-properties overlay sha1 md5
base64 format env code-pages m= ule custom widget hashtable-print-readable
backquote threads dbusbind in= otify lcms2 dynamic-setting
system-font-setting font-render-setting x mu= lti-tty make-network-process
emacs)

Memory information:
((cons= es 16 76232 12727)
=C2=A0(symbols 48 8198 1)
=C2=A0(strings 32 28196 = 1967)
=C2=A0(string-bytes 1 800056)
=C2=A0(vectors 16 13427)
=C2= =A0(vector-slots 8 162016 12678)
=C2=A0(floats 8 43 388)
=C2=A0(inter= vals 56 1044 0)
=C2=A0(buffers 992 19))
--0000000000008cbf9b05903206a3-- From unknown Sat Jun 21 03:21:50 2025 X-Loop: help-debbugs@gnu.org Subject: bug#37044: 27.0.50; url-http breaks behind proxy when reusing existing connection Resent-From: Thomas Fitzsimmons Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 16 Aug 2019 17:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 37044 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: David Ringo Cc: 37044@debbugs.gnu.org Received: via spool by 37044-submit@debbugs.gnu.org id=B37044.156597517011502 (code B ref 37044); Fri, 16 Aug 2019 17:07:02 +0000 Received: (at 37044) by debbugs.gnu.org; 16 Aug 2019 17:06:10 +0000 Received: from localhost ([127.0.0.1]:54848 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyfg2-0002zQ-5K for submit@debbugs.gnu.org; Fri, 16 Aug 2019 13:06:10 -0400 Received: from mail-io1-f53.google.com ([209.85.166.53]:35882) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyffz-0002yx-B5 for 37044@debbugs.gnu.org; Fri, 16 Aug 2019 13:06:09 -0400 Received: by mail-io1-f53.google.com with SMTP id o9so7557564iom.3 for <37044@debbugs.gnu.org>; Fri, 16 Aug 2019 10:06:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fitzsim-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=+C9wfu41YEKxrDVBNpCqQ4DM7rbBGpqHjRGje+9ww3M=; b=OMakvVNniSamz1+ZcbBgJGLMTFi16pSmwKALO5tqR95GonaiN6dQLJPmHChKlszoWN GqnKNhL07JUYZOrGt6ZAK+15jArNMOCGl5ekD6jFsAAeJy1VBb9aFNCDfHBp0X/MVBYJ 8Lu9ZL3tADIscU+rv3+d1mVzUM0hnpN1RaH3yIFZ+K7kM3KwsWLoO3Ie1G/Z1H3ppy94 NPrLP9YAb1d9A0oM6/+fECiIVtZzlhUZFu2mhzkYWRXXynj4FEsxB+a7LDrX/iGTgJDi s8W5rayK4K94rKrDFIDpvH3Gs037Qsl7XzKVby9RW5JLLDIwQrD10otsblIc87RkImyz 7nSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=+C9wfu41YEKxrDVBNpCqQ4DM7rbBGpqHjRGje+9ww3M=; b=BysU/6CdYEi4CNXTuL9TIF3BgEBNBlLFzVzxRRtYUiHVEcic4jhseA+Ly4lfqLm6mo BouP1xXI2R2Mu8N41lAOeqLxCTe6EYuEnIBvYy33exdjq4iTO4gyN/jVaDOrQRA3ioeA R89a5AfOKinQFCsHiI5R76n6RnM+TOeRpO7NOvsH3Nxo2Dz8nRfuNkZkc0ER8Z5rQNkO WVaJnj91enUbRuVrZsSKtL6ceekK89FduTFQ/Hq2ppunWpKclQMWIg9QuduRgZUcfL/h P351k9S5LkxfX1MIqO6VuIboy5RmgpU+n+uqbBD4g+eFfDwRDWDJ551jtRSg4EjNNv/q bwgQ== X-Gm-Message-State: APjAAAUCLlWYH+dFybsk+QbbnDrWN+Jm40/cLS3UZeH1JkJs0gvU0ATp /2xP68VtZUwRtRqyTvEUAV9dVPiWuAlHNA== X-Google-Smtp-Source: APXvYqzPVf6JEauHFWuDwxvD60NXiukwX0QN7W+c5roUVLBmWBgFbsf7F1QcIV3lpYdzdUX/KE6yrw== X-Received: by 2002:a5e:834d:: with SMTP id y13mr1360665iom.79.1565975161547; Fri, 16 Aug 2019 10:06:01 -0700 (PDT) Received: from localhost.localdomain (69-165-165-189.dsl.teksavvy.com. [69.165.165.189]) by smtp.gmail.com with ESMTPSA id x11sm10090894ioh.87.2019.08.16.10.06.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 Aug 2019 10:06:00 -0700 (PDT) From: Thomas Fitzsimmons References: Date: Fri, 16 Aug 2019 13:05:59 -0400 In-Reply-To: (David Ringo's message of "Thu, 15 Aug 2019 19:36:44 -0600") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -0.3 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.3 (-) Hi David, David Ringo writes: > It seems that commit 84613dae5c3 is at least partially responsible for > this. It's a small change to `url-https-proxy-after-change-function' > that binds `url-http-proxy' around the call to > `url-http-create-request'. This might be addressed by the fix for bug#35969 that I pushed last night, can you retry with master tip? http://debbugs.gnu.org/cgi/bugreport.cgi?bug=35969 Thanks, Thomas From unknown Sat Jun 21 03:21:50 2025 X-Loop: help-debbugs@gnu.org Subject: bug#37044: 27.0.50; url-http breaks behind proxy when reusing existing connection Resent-From: David Ringo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 17 Aug 2019 00:59:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 37044 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Thomas Fitzsimmons Cc: 37044@debbugs.gnu.org Received: via spool by 37044-submit@debbugs.gnu.org id=B37044.156600351717520 (code B ref 37044); Sat, 17 Aug 2019 00:59:01 +0000 Received: (at 37044) by debbugs.gnu.org; 17 Aug 2019 00:58:37 +0000 Received: from localhost ([127.0.0.1]:55194 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyn3E-0004YW-MV for submit@debbugs.gnu.org; Fri, 16 Aug 2019 20:58:36 -0400 Received: from mail-wr1-f45.google.com ([209.85.221.45]:43425) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyn3D-0004YK-Cy for 37044@debbugs.gnu.org; Fri, 16 Aug 2019 20:58:36 -0400 Received: by mail-wr1-f45.google.com with SMTP id y8so3098526wrn.10 for <37044@debbugs.gnu.org>; Fri, 16 Aug 2019 17:58:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=bw+rSenTm54MVQR47qoTCJvBTBaLmGXmUAhM7T3Ksqo=; b=EzHf2Xpbm6qXAzYXTUh4Rgnhq3Z3aFkBFs13cX82+Qn7w2YChCY2oHDWnpfnqOK0qr zEznNYVD+BCPcqWu4uXKUSKX3O76U6g7XPKSM6sTADSaKkuOtTOn2VLin3DoMRssOzdE pzjkjzTwYMuOGHxdD+CNYdxQO+owaxLyKB10Y4Merq8uTZbVNv2JRADhXjfmbs9jmULw kbyUkYaN9FoCZ4QznBxxpPcwPJYdmRJUVml49jF368TapD1576sQrnMHPtM49NYZo8rw a3RFDsF1vV7cg0NCeA8Zi3geQXyVojPs7v2tLmYeu6Tz87um1xbDjx87tuZ5H8TxDyim Grkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=bw+rSenTm54MVQR47qoTCJvBTBaLmGXmUAhM7T3Ksqo=; b=sdHAuuYWVv3K+LvtZ/e6TdRWs9v6xmgBZEHC6/DJs8BYP5u5dySD+noRHm3M/eaLEO zgd13U33/uYF4UZCwnj82dF5mZivnPVg28fq6K69dZ8fak+dTT2qFZiDE95+c4XAl8dZ sq9r9mlByNiX+FN+6QkRz/uhI5yxigNEV0qEBVGNmKQejYj6rwqXDDepKg97ltZP8NPG SkO2dVofeIantGz8HPk0ntlHeyCz+yfYIycE7zGmUm5U0Eaq5lFyynlcI1KQcVO1nTT3 6aq9SuopknivbdFr1OSjw2sfkUszmm8hbzUnV37i6Ta/eVr2QccG2Wq31bQDE6HWTPy6 l/7A== X-Gm-Message-State: APjAAAXr9OXKRtNK9BBAuoffmNUleZCAIQhCdp2r84Ck6SyqVaMfMkHW 78WK9C9FkZJF/stxBfsNejLVklHk/lX9Gw69kN/uin4r X-Google-Smtp-Source: APXvYqwCoFxGAFXjoYu/Agrz/Yuuq7NfdBIRCFk6sBa2QCKisM/g/v9eLQF5TeldKspp4kmdO3+UKsdjyFsS7I64LO4= X-Received: by 2002:a5d:4bc1:: with SMTP id l1mr13837202wrt.259.1566003509161; Fri, 16 Aug 2019 17:58:29 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: David Ringo Date: Fri, 16 Aug 2019 18:58:18 -0600 Message-ID: Content-Type: multipart/alternative; boundary="000000000000e174680590459a26" X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) --000000000000e174680590459a26 Content-Type: text/plain; charset="UTF-8" Hi Thomas, I haven't been able to test on the machine I submitted the report from, but on some other shared machines behind the proxy, it looks like your fix seems to work (while the revision I was on is still broken on those machines). Thanks for all the work on the other bug -- that seemed like a long process. I'm not super familiar with debbugs, but if there's anything I should do to mark this as closed or resolved, please let me know. - David On Fri, Aug 16, 2019 at 11:06 AM Thomas Fitzsimmons wrote: > Hi David, > > David Ringo writes: > > > It seems that commit 84613dae5c3 is at least partially responsible for > > this. It's a small change to `url-https-proxy-after-change-function' > > that binds `url-http-proxy' around the call to > > `url-http-create-request'. > > This might be addressed by the fix for bug#35969 that I pushed last > night, can you retry with master tip? > > http://debbugs.gnu.org/cgi/bugreport.cgi?bug=35969 > > Thanks, > Thomas > --000000000000e174680590459a26 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Thomas,

I haven't been able to t= est on the machine I submitted the report from, but on some other shared ma= chines behind the proxy, it looks like your fix seems to work (while the re= vision I was on is still broken on those machines). Thanks for all the work= on the other bug -- that seemed like a long process.

<= div>I'm not super familiar with debbugs, but if there's anything I = should do to mark this as closed or resolved,=C2=A0please let me know.

- David

On Fri, Aug 16, 2019 at 11:06 AM Thomas F= itzsimmons <fitzsim@fitzsim.org> wrote:
Hi= David,

David Ringo <= davidmringo@gmail.com> writes:

> It seems that commit 84613dae5c3 is at least partially responsible for=
> this.=C2=A0 It's a small change to `url-https-proxy-after-change-f= unction'
> that binds `url-http-proxy' around the call to
> `url-http-create-request'.

This might be addressed by the fix for bug#35969 that I pushed last
night, can you retry with master tip?

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D3= 5969

Thanks,
Thomas
--000000000000e174680590459a26-- From unknown Sat Jun 21 03:21:50 2025 MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) X-Loop: help-debbugs@gnu.org From: help-debbugs@gnu.org (GNU bug Tracking System) To: David Ringo Subject: bug#37044: closed (Re: bug#37044: 27.0.50; url-http breaks behind proxy when reusing existing connection) Message-ID: References: X-Gnu-PR-Message: they-closed 37044 X-Gnu-PR-Package: emacs Reply-To: 37044@debbugs.gnu.org Date: Sat, 17 Aug 2019 02:10:02 +0000 Content-Type: multipart/mixed; boundary="----------=_1566007802-23841-1" This is a multi-part message in MIME format... ------------=_1566007802-23841-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Your bug report #37044: 27.0.50; url-http breaks behind proxy when reusing existing connect= ion which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 37044@debbugs.gnu.org. --=20 37044: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D37044 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems ------------=_1566007802-23841-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 37044-done) by debbugs.gnu.org; 17 Aug 2019 02:09:19 +0000 Received: from localhost ([127.0.0.1]:55212 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyo9d-0006BY-P8 for submit@debbugs.gnu.org; Fri, 16 Aug 2019 22:09:19 -0400 Received: from mail-io1-f54.google.com ([209.85.166.54]:37473) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyo9b-0006BK-5u for 37044-done@debbugs.gnu.org; Fri, 16 Aug 2019 22:09:15 -0400 Received: by mail-io1-f54.google.com with SMTP id q22so9993144iog.4 for <37044-done@debbugs.gnu.org>; Fri, 16 Aug 2019 19:09:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fitzsim-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=6Q6os2Rr/O4Lkm3m4SdiNyHg5cqtSSLhhyhci1JGjOA=; b=wHkV5OSoOpRjKTfZPj/Sl4i3V3RuhtEb6VWvNnkEd3KPTs0WhYfpQDTnO0RPstTzZ+ PDo+imIP6WM2CVlaQzt6zE5fFy0Xkptatxf1pHujYpq/uhRCN7+AddG0nUddNR4IWQV0 M9Au7dx700AqxOrrK6MlUiILB0FIgUGy6O9epg74omnmUzKcT4pORdC6+EWVOvZnMdLd IPLzhvQFpvZn7vzoMyTe1gwSCtoTU1vIXz2/lMheXI+T89D/pF7gBLpzvSBgeuh6Q92N ygHoLVtzylc50Cs8zoIiNGJPntxUil98UYnjKfw536ClrtB06u2k91e5VQsP9vgse3m3 AWkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=6Q6os2Rr/O4Lkm3m4SdiNyHg5cqtSSLhhyhci1JGjOA=; b=XEcX+SUQvm5mAmKRCqPQ/PW8q1XVqBqBC4SJzSeaVM9Afk+cWQqVXF7Rv29gbSud2T FkVVrBIgxlkE5h0ubb01EuHJSvULBFskeTrD8/10S3BsH9BYNOphn+3/+BepNUCqEUWq 7PwIJOkl1Af4rS0YuDNYSDT6C3UWmmxP06+rbOXMf4CCPazznkFLjmCQqGtN5dikSPai lesn2luQ9IakWIR2BkwSEJA1Ws60k4CW9P/IhlEBknJIXGcDTvoKhlzp3J0aul1NZ57N 1Gaw6fc+ZCDr2dTo5Smsfzefc1gwniGVlOjC6jrE9crZNLiMZWE48PoQ2UfFA1/KkYpV +CBA== X-Gm-Message-State: APjAAAW8xDWzg8kpfp+isSkKlk9Lwrme3QGTNVaSPMZx0Ur3l4GbwnxE pPTeU6KsJs8bMW72qHABzPgtUqXMaynXHg== X-Google-Smtp-Source: APXvYqy3qwcaTd1jG02o44hJZbFFIM8RWWOchvUbAgWZz2uUXtQbmTmUCuG9XXtt2i0PoBdZiZW0/g== X-Received: by 2002:a6b:1ca:: with SMTP id 193mr14749880iob.264.1566007749452; Fri, 16 Aug 2019 19:09:09 -0700 (PDT) Received: from localhost.localdomain (69-165-165-189.dsl.teksavvy.com. [69.165.165.189]) by smtp.gmail.com with ESMTPSA id p25sm5336880iol.48.2019.08.16.19.09.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 Aug 2019 19:09:08 -0700 (PDT) From: Thomas Fitzsimmons To: David Ringo Subject: Re: bug#37044: 27.0.50; url-http breaks behind proxy when reusing existing connection References: Date: Fri, 16 Aug 2019 22:09:07 -0400 In-Reply-To: (David Ringo's message of "Fri, 16 Aug 2019 18:58:18 -0600") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 37044-done Cc: 37044-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Hi David, David Ringo writes: > Hi Thomas, > > I haven't been able to test on the machine I submitted the report > from, but on some other shared machines behind the proxy, it looks > like your fix seems to work (while the revision I was on is still > broken on those machines). Thanks for all the work on the other bug -- > that seemed like a long process. > > I'm not super familiar with debbugs, but if there's anything I should > do to mark this as closed or resolved, please let me know. Thanks for the bug report and for confirming the fix. I'm marking this "done". Thomas ------------=_1566007802-23841-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 16 Aug 2019 04:49:29 +0000 Received: from localhost ([127.0.0.1]:52910 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyUB6-0003Mk-DG for submit@debbugs.gnu.org; Fri, 16 Aug 2019 00:49:29 -0400 Received: from lists.gnu.org ([209.51.188.17]:59315) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyRAs-00053T-UB for submit@debbugs.gnu.org; Thu, 15 Aug 2019 21:37:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56726) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hyRAq-0008MR-Oy for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:37:02 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HTML_MESSAGE,URIBL_BLOCKED autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hyRAo-0004cB-Ef for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:37:00 -0400 Received: from mail-wm1-x341.google.com ([2a00:1450:4864:20::341]:54196) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hyRAo-0004bb-6R for bug-gnu-emacs@gnu.org; Thu, 15 Aug 2019 21:36:58 -0400 Received: by mail-wm1-x341.google.com with SMTP id 10so2773628wmp.3 for ; Thu, 15 Aug 2019 18:36:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=g/Ksl+ztci0yZ+aI/sKlHZUxlwjnUUApgwXSNBjzs5w=; b=Fp+wh2r+wCTfViBP/n6hXOooEIhnqCHH2FuAS+cR24CHLOCYM5pq+5L+EC92bwjOdw 5Zzpu/RpmCrDYlaGKdbinTOwZMArR+aBmGKmqC2jTP4FKU+xyd8LTd4wjTa2VtHG2+Nz No5C0flpp2UZLGk1UjAiTwKpLnLrQ5WieZtK4pYigXUdJIQHfPmm34Kl9AO1khpYhy+O 8wRS8KiIvYHo8g+gTTCZB8n+lg8wm87ZyzKdjEEPbHuzBqdNP1KkxDM79FGA4nCrlo4m tiYAGj9/LBjGhfERoMkZIGgvRmC77Dv5I/yJADfIT5GcTZVOSer+kouKutwhNdQClC0D g5RQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=g/Ksl+ztci0yZ+aI/sKlHZUxlwjnUUApgwXSNBjzs5w=; b=lyH7u0JiRhvYuet8cZTqHXTwwBFAmJTH3n5pmrY6Vg/hxt1fTogW5Kk/vr3HFvWSeX y7XLQI/CUdfjqycbhhxZ2jHDJikDMKtCZXIEZi1Dc8iT7P0o/f/qtmflIaZY+l7Wz7g6 VBvqOmM5sZUkjFH+0dSlTcqfjZ/4yXUm0povTRi3b7R+KDX+hY1bVjW3mQKMhgbUlO8Q SUmpaDndoM5KokNzZHkTznCm3CF06k+O20d+Vjtgf8awZV0Ki3lQV2bni8rpiMNOs9uB 76req63TTZvLifUWsjGxe++2PaHGc/I5Rjkb7B2mLoLZVGPXHl61ioEdtI9ckZpwXd2a IpZA== X-Gm-Message-State: APjAAAXsdFJ3oGzZTQdC0zPFns5rbFXb1Fw7M1WICzdbES/WJlShNeDD 152JclikgfFkOFfQW2Qr9RId2AMciPRSplLeb0foTxMX0/U= X-Google-Smtp-Source: APXvYqwpE62Nz4vFJVUhtn0jMVDBKkWvO+gwkA6GiKFDHeZuQPuCTxGK5QMsIfXNgJ5eEW2X4hFyh0L43ku2mAXcibA= X-Received: by 2002:a7b:cf2d:: with SMTP id m13mr4774399wmg.120.1565919416203; Thu, 15 Aug 2019 18:36:56 -0700 (PDT) MIME-Version: 1.0 From: David Ringo Date: Thu, 15 Aug 2019 19:36:44 -0600 Message-ID: Subject: 27.0.50; url-http breaks behind proxy when reusing existing connection To: bug-gnu-emacs@gnu.org Content-Type: multipart/alternative; boundary="0000000000008cbf9b05903206a3" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::341 X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Fri, 16 Aug 2019 00:49:27 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) --0000000000008cbf9b05903206a3 Content-Type: text/plain; charset="UTF-8" When trying to make more than one HTTPS request to the same host via `url-retrieve-synchronously' behind my work proxy, only the first request succeeds. Depending on the host, subsequent requests result in 400/404/302 and perhaps a couple other response codes. There's some minimal code below that can be run with emacs -Q, but I don't know how to replicate the proxy. It seems that commit 84613dae5c3 is at least partially responsible for this. It's a small change to `url-https-proxy-after-change-function' that binds `url-http-proxy' around the call to `url-http-create-request'. Without that binding, I see no errors. I tested this both in 26.2.90 which does not include that commit, and the revision in this report by simply redefining the function to the older version. This happens both when `url-proxy-services' is set manually and when it is set from environment variables. I'm not sure if this is a problem with Emacs, the proxy I'm behind, or if there is some configuration I should be aware of that already addresses this. Please let me know if there's any other useful information I can provide. Sample code and the corresponding url-http buffer headers follow. The specific URLs don't seem to matter as long they are HTTPS. The optional arguments also don't seem to make a difference. - David Code: (url-retrieve-synchronously "https://xkcd.com/1/") (url-retrieve-synchronously "https://xkcd.com/2/") First request (success): HTTP/1.1 200 OK Server: nginx Content-Type: text/html; charset=UTF-8 Last-Modified: Thu, 15 Aug 2019 11:24:39 GMT Expires: Thu, 15 Aug 2019 21:22:11 GMT Cache-Control: max-age=300 Content-Length: 3012 Accept-Ranges: bytes Date: Fri, 16 Aug 2019 01:32:01 GMT Via: 1.1 varnish Age: 142 Connection: keep-alive X-Served-By: cache-mdw17348-MDW X-Cache: HIT X-Cache-Hits: 1 X-Timer: S1565919121.298692,VS0,VE0 Vary: Accept-Encoding Second request (failuer): HTTP/1.1 400 Bad Request Server: nginx Content-Type: text/html; charset=UTF-8 Content-Length: 166 Accept-Ranges: bytes Date: Fri, 16 Aug 2019 01:32:01 GMT Via: 1.1 varnish Connection: keep-alive X-Served-By: cache-mdw17348-MDW X-Cache: MISS X-Cache-Hits: 0 X-Timer: S1565919121.349321,VS0,VE26 In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu) of 2019-08-07 built on slartibartfast Repository revision: d5622eb6fff94714c5d5a64c98c5e02bc1be478c Repository branch: master Windowing system distributor 'Fedora Project', version 11.0.12005000 System Description: Fedora 30 (Workstation Edition) Recent messages: Making completion list... Quit Note: file is write protected View mode: type C-h for help, h for commands, q to quit. previous-line: Beginning of buffer [2 times] Mark saved where search started Note: file is write protected View mode: type C-h for help, C-h m for commands, M-x View-quit to quit. Quit [3 times] Mark saved where search started Quit Configured using: 'configure --with-imagemagick --with-modules --with-x-toolkit=no' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF XFT ZLIB OLDXMENU X11 XDBE XIM MODULES THREADS PDUMPER LCMS2 GMP Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Info Minor modes in effect: tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t line-number-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message dired dired-loaddefs format-spec rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail rmail-loaddefs text-property-search time-date mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader sendmail goto-addr thingatpt mule-util jka-compr info noutline outline easy-mmode view help-mode easymenu misearch multi-isearch mail-utils gnutls network-stream url-cache url-http url-auth mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr url-gw nsm rmc puny url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util url-parse auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json subr-x map seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib url-vars mailcap tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting x multi-tty make-network-process emacs) Memory information: ((conses 16 76232 12727) (symbols 48 8198 1) (strings 32 28196 1967) (string-bytes 1 800056) (vectors 16 13427) (vector-slots 8 162016 12678) (floats 8 43 388) (intervals 56 1044 0) (buffers 992 19)) --0000000000008cbf9b05903206a3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
When trying to make more than one HTTPS request to th= e same host via `url-retrieve-synchronously' behind my work proxy, only= the first request succeeds.=C2=A0 Depending on the host, subsequent reques= ts result in 400/404/302 and perhaps a couple other response codes.=C2=A0 T= here's some minimal code below that can be run with emacs -Q, but I don= 't know how to replicate the proxy.

It seems t= hat commit=C2=A084613dae5c3 is at least partially responsible for this.=C2= =A0 It's a small change to `url-https-proxy-after-change-function' = that binds `url-http-proxy' around the call to `url-http-create-request= '.=C2=A0 Without that binding, I see no errors.=C2=A0 I tested this bot= h in 26.2.90 which does not include that commit, and the revision in this r= eport by simply redefining the function to the older version.
This happens both when `url-proxy-services' is set manually= and when it is set from environment variables.

I&= #39;m not sure if this is a problem with Emacs, the proxy I'm behind, o= r if there is some configuration I should be aware of that already addresse= s this.=C2=A0 Please let me know if there's any other useful informatio= n I can provide.

Sample code and the corresponding= url-http buffer headers follow.=C2=A0 The specific URLs don't seem to = matter as long they are HTTPS.=C2=A0 The optional arguments also don't = seem to make a difference.

- David

<= /div>
Code:
(url-retrieve-synchronously "https://xkcd.com/1/")
(url-retrieve= -synchronously "https://xkcd.com/2/")



In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu)
=C2=A0of 20= 19-08-07 built on slartibartfast
Repository revision: d5622eb6fff94714c5= d5a64c98c5e02bc1be478c
Repository branch: master
Windowing system dis= tributor 'Fedora Project', version 11.0.12005000
System Descript= ion: Fedora 30 (Workstation Edition)

Recent messages:
Making comp= letion list...
Quit
Note: file is write protected
View mode: type = C-h for help, h for commands, q to quit.
previous-line: Beginning of buf= fer [2 times]
Mark saved where search started
Note: file is write pro= tected
View mode: type C-h for help, C-h m for commands, M-x View-quit t= o quit.
Quit [3 times]
Mark saved where search started
Quit
Con= figured using:
=C2=A0'configure --with-imagemagick --with-modules --= with-x-toolkit=3Dno'

Configured features:
XPM JPEG TIFF GIF P= NG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB
NOTIFY INOTIFY ACL LIB= SELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT
LIBOTF XFT ZLIB OLDXME= NU X11 XDBE XIM MODULES THREADS PDUMPER LCMS2 GMP

Important settings= :
=C2=A0 value of $LANG: en_US.UTF-8
=C2=A0 value of $XMODIFIERS: @im= =3Dibus
=C2=A0 locale-coding-system: utf-8-unix

Major mode: Info<= br>
Minor modes in effect:
=C2=A0 tooltip-mode: t
=C2=A0 global-el= doc-mode: t
=C2=A0 electric-indent-mode: t
=C2=A0 mouse-wheel-mode: t=
=C2=A0 tool-bar-mode: t
=C2=A0 menu-bar-mode: t
=C2=A0 file-name-= shadow-mode: t
=C2=A0 global-font-lock-mode: t
=C2=A0 font-lock-mode:= t
=C2=A0 blink-cursor-mode: t
=C2=A0 auto-composition-mode: t
=C2= =A0 auto-encryption-mode: t
=C2=A0 auto-compression-mode: t
=C2=A0 bu= ffer-read-only: t
=C2=A0 line-number-mode: t
=C2=A0 transient-mark-mo= de: t

Load-path shadows:
None found.

Features:
(shadow = sort mail-extr emacsbug message dired dired-loaddefs format-spec
rfc822 = mml mml-sec epa derived epg epg-config gnus-util rmail
rmail-loaddefs te= xt-property-search time-date mm-decode mm-bodies
mm-encode mailabbrev gm= m-utils mailheader sendmail goto-addr thingatpt
mule-util jka-compr info= noutline outline easy-mmode view help-mode
easymenu misearch multi-isea= rch mail-utils gnutls network-stream
url-cache url-http url-auth mail-pa= rse rfc2231 rfc2047 rfc2045 mm-util
ietf-drums mail-prsvr url-gw nsm rmc= puny url url-proxy url-privacy
url-expand url-methods url-history url-c= ookie url-domsuf url-util
url-parse auth-source cl-seq eieio eieio-core = cl-macs eieio-loaddefs
password-cache json subr-x map seq byte-opt gv by= tecomp byte-compile
cconv cl-loaddefs cl-lib url-vars mailcap tooltip el= doc electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-= win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fr= inge
tabulated-list replace newcomment text-mode elisp-mode lisp-modeprog-mode register page menu-bar rfn-eshadow isearch timer select
scrol= l-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors= frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan = thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian= slovak czech european ethiopic indian cyrillic
chinese composite charsc= ript charprop case-table epa-hook jka-cmpr-hook
help simple abbrev obarr= ay minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroe= xp files text-properties overlay sha1 md5
base64 format env code-pages m= ule custom widget hashtable-print-readable
backquote threads dbusbind in= otify lcms2 dynamic-setting
system-font-setting font-render-setting x mu= lti-tty make-network-process
emacs)

Memory information:
((cons= es 16 76232 12727)
=C2=A0(symbols 48 8198 1)
=C2=A0(strings 32 28196 = 1967)
=C2=A0(string-bytes 1 800056)
=C2=A0(vectors 16 13427)
=C2= =A0(vector-slots 8 162016 12678)
=C2=A0(floats 8 43 388)
=C2=A0(inter= vals 56 1044 0)
=C2=A0(buffers 992 19))
--0000000000008cbf9b05903206a3-- ------------=_1566007802-23841-1--