Package: emacs;
Reported by: Winston Weinert <winston <at> ml1.net>
Date: Wed, 10 Oct 2018 08:11:01 UTC
Severity: normal
Tags: fixed
Found in version 26.1
Fixed in version 27.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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From: Winston Weinert <winston <at> ml1.net> To: 33002 <at> debbugs.gnu.org Subject: bug#33002: 26.1; EWW sends unspecific "Accept: */*" header Date: Wed, 10 Oct 2018 00:11:03 -0500
I noticed EWW sends header "Accept: */*", which appears to prevent HTTP servers that provide multiple content types from picking a sensible response content type. More information about the Accept header with a list of RFCs at the bottom of the page can be found here [1]. For comparison lynx sends a more specific header, which indicates It'd prefer common web content types before anything else [2]. I experienced this particular bug when browsing [3], which uses the Accept header to determine when to show the built-in API Explorer. In a web browser it shows a HTML form to interact with the API, however actual API clients use "Accept: application/json" or similar to get the desired format. Regards, Winston Weinert [1]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept [2]: "Accept: text/html, text/plain, text/sgml, text/css, application/xhtml+xml, */*;q=0.01" [3]: https://restframework.herokuapp.com/ In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2018-09-08 built on snowcrash Windowing system distributor 'The X.Org Foundation', version 11.0.11905000 System Description: Gentoo Base System release 2.4.1 Recent messages: C-c C-g is undefined Quit Contacting host: duckduckgo.com:443 ImageMagick error: insufficient image data in file `/tmp/foo.ico' @ error/icon.c/ReadICONImage/375 Contacting host: localhost:8000 Making completion list... [3 times] Note: file is write protected Mark saved where search started Quit delete-backward-char: Text is read-only Configured using: 'configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-silent-rules --docdir=/usr/share/doc/emacs-26.1-r3 --htmldir=/usr/share/doc/emacs-26.1-r3/html --libdir=/usr/lib64 --program-suffix=-emacs-26 --infodir=/usr/share/info/emacs-26 --localstatedir=/var --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp --without-compress-install --without-hesiod --without-pop --with-file-notification=inotify --enable-acl --with-dbus --without-modules --without-gameuser --without-gpm --without-kerberos --without-kerberos5 --with-lcms2 --with-xml2 --without-mailutils --without-selinux --with-gnutls --without-libsystemd --with-threads --without-wide-int --with-zlib --with-sound=alsa --with-x --without-ns --without-gconf --without-gsettings --with-toolkit-scroll-bars --with-gif --with-jpeg --with-png --with-rsvg --with-tiff --with-xpm --with-imagemagick --with-xft --without-cairo --without-libotf --without-m17n-flt --with-x-toolkit=lucid --with-xaw3d 'CFLAGS=-O2 -pipe -march=bdver2' CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed'' Configured features: XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS NOTIFY ACL GNUTLS LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 THREADS LCMS2 Important settings: value of $LANG: en_US.utf8 locale-coding-system: utf-8-unix Major mode: Outline Minor modes in effect: TeX-PDF-mode: t global-magit-file-mode: t diff-auto-refine-mode: t magit-auto-revert-mode: t global-git-commit-mode: t async-bytecomp-package-mode: t override-global-mode: t winum-mode: t shell-dirtrack-mode: t recentf-mode: t global-edit-server-edit-mode: t mode-line-bell-mode: t editorconfig-mode: t electric-pair-mode: t image-diredx-async-mode: t show-paren-mode: t cl-old-struct-compat-mode: t tooltip-mode: t electric-indent-mode: t mouse-wheel-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 column-number-mode: t line-number-mode: t transient-mark-mode: t Load-path shadows: /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim hides ~/.emacs.d/custom/emacs-eclim/eclim /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-java-run hides ~/.emacs.d/custom/emacs-eclim/eclim-java-run /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-macros hides ~/.emacs.d/custom/emacs-eclim/eclim-macros /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-debug hides ~/.emacs.d/custom/emacs-eclim/eclim-debug /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-completion hides ~/.emacs.d/custom/emacs-eclim/eclim-completion /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-common hides ~/.emacs.d/custom/emacs-eclim/eclim-common /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-problems hides ~/.emacs.d/custom/emacs-eclim/eclim-problems /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-maven hides ~/.emacs.d/custom/emacs-eclim/eclim-maven /home/winston/.emacs.d/elpa/eclim-20180928.523/eclimd hides ~/.emacs.d/custom/emacs-eclim/eclimd /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-ant hides ~/.emacs.d/custom/emacs-eclim/eclim-ant /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-pkg hides ~/.emacs.d/custom/emacs-eclim/eclim-pkg /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-project hides ~/.emacs.d/custom/emacs-eclim/eclim-project /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-scala hides ~/.emacs.d/custom/emacs-eclim/eclim-scala /home/winston/.emacs.d/elpa/eclim-20180928.523/eclim-java hides ~/.emacs.d/custom/emacs-eclim/eclim-java ~/.emacs.d/custom/emacs-eclim/company-emacs-eclim hides /home/winston/.emacs.d/elpa/company-emacs-eclim-20180911.1121/company-emacs-eclim ~/code/cyberpunk-theme.el/cyberpunk-theme hides /home/winston/.emacs.d/elpa/cyberpunk-theme-20180609.509/cyberpunk-theme Features: (shadow sort mail-extr emacsbug rng-xsd xsd-regexp rng-cmpct rng-nxml rng-valid nxml-mode nxml-outln nxml-rap sgml-mode tabify man scheme yaml-mode term ehelp sml-mode conf-mode gist gh-gist gh-oauth gh-api logito gh-cache pcache gh-auth gh-url gh-profile timezone eieio-base cus-edit url-file url-dired eww mm-url url-queue helm-dash helm helm-source helm-multi-match helm-lib eclim-scala eclim-debug eclimd gud eclim-java-run eclim-ant eclim-maven eclim-project eclim-java eclim-problems yasnippet eclim-common popup arc-mode archive-mode eclim-macros package-recipe-mode package-build-badges package-build package-recipe skeleton ibuf-macs grep ibuf-ext ibuffer ibuffer-loaddefs racket-unicode-input-method quail racket-debug racket-mode racket-bug-report racket-collection 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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 dbusbind inotify lcms2 dynamic-setting font-render-setting x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 2584773 148802) (symbols 48 78658 1) (miscs 40 5277 2890) (strings 32 395278 13798) (string-bytes 1 15855316) (vectors 16 114301) (vector-slots 8 2574679 85614) (floats 8 656 957) (intervals 56 273185 3106) (buffers 992 129))
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