`url-retrieve-synchronously` docs claims to accept a parsed URL vector as an argument, but in latest version of emacs 24.1.50 it seems to break when passed a URL vector. For example, this throws an error: (url-retrieve-synchronously (url-generic-parse-url (concat "http://search.maven.org" "/solrsearch/select?q=\"" "log4j" "\"&rows=20&wt=json"))) I think the problem is the following (line 185 of url.el.gz) should first check to make sure the URL is not a vector: (setq url (url-encode-url url)) This is my first time submitting a bug report, so if you need any more info, please let me know. Thanks! Dave In GNU Emacs 24.1.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.2.0) of 2012-07-28 on meitnerium, modified by Debian (emacs-snapshot package, version 2:20120728-fake2-1~ppa~oneiric1) Windowing system distributor `The X.Org Foundation', version 11.0.11004000 Configured using: `configure '--build' 'x86_64-linux-gnu' '--host' 'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/24.1.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.1.50/site-lisp:/usr/share/emacs/site-lisp' '--without-compress-info' '--with-crt-dir=/usr/lib/x86_64-linux-gnu/' '--with-x=yes' '--with-x-toolkit=gtk3' '--with-imagemagick=yes' 'build_alias=x86_64-linux-gnu' 'host_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed -znocombreloc' 'CPPFLAGS='' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: en_US.UTF-8 value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: IELM Minor modes in effect: recentf-mode: t ido-ubiquitous-mode: t show-paren-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-n C-n C-n C-n C-n C-n C-n C-p C-f C-f C-f C-f C-x x f C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-p C-u C-M-x C-x b p o m C-c m d s l o g 4 j n n n n n n n n C-b C-b C-b C-b C-b C-b C-b C-h f C-b C-h f C-x o C-n C-n C-n C-n C-x b m v n C-g C-x o C-M-x C-u C-g C-l C-x r m q C-x r b C-x RET r e p o r t - b u g s e m a c s - b u g C-g C-g C-n C-p C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-f C-f C-x b i e l C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-SPC C-n C-n C-n C-e M-w C-n C-n C-n C-n C-n C-n C-n C-n C-n C-y C-p C-p e n d c o d e - u r l ( ) C-n C-n C-e C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-f C-f C-h f q C-x o q C-b C-b C-SPC C-n C-n C-n C-e M-w C-x RET < return> Recent messages: Quit url-retrieve-internal Quit Back to top level. Quit [2 times] Mark set [2 times] Contacting host: search.maven.org:80 Type C-x 1 to delete the help window. Mark set Load-path shadows: /usr/share/emacs/24.1.50/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup Features: (shadow sort mail-extr network-stream starttls url-http tls url-gw url-cache emacsbug message rfc822 mml mailabbrev gmm-utils mailheader sendmail mail-utils bookmark mm-view mml-smime mml-sec smime dig mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums edebug ielm pp jka-compr sgml-mode nxml-uchnm rng-xsd xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok url-auth url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap cua-base ert ewoc debug espuds espuds-misc espuds-region espuds-movement espuds-input espuds-text espuds-buffer espuds-helpers ecukes ecukes-setup ecukes-stats ecukes-hooks ecukes-print ecukes-run ecukes-steps ecukes-parse ecukes-startup ecukes-directories ecukes-def ecukes-new ecukes-template ansi mvn-mode mvn-xml mvn-region xml mvn-search xml-to-string json hi-lock recentf tree-widget wid-edit mule-util cal-move parse-time multi-isearch vc-git flyspell ispell org-wl org-w3m org-vm org-rmail org-mhe org-mew org-irc org-jsinfo org-infojs org-html org-exp ob-exp org-exp-blocks find-func org-agenda org-info org-gnus org-docview org-bibtex bibtex org-bbdb org warnings ob-emacs-lisp ob-tangle ob-ref ob-lob ob-table org-footnote org-src ob-comint ob-keys ob ob-eval org-pcomplete org-list org-faces org-compat org-entities org-macs noutline outline easy-mmode format-spec cal-menu calendar cal-loaddefs ffap url-parse auth-source eieio byte-opt bytecomp byte-compile cconv macroexp gnus-util mm-util mail-prsvr password-cache url-vars help-mode easymenu view em-unix pcomplete comint ansi-color em-term term disp-table ehelp electric em-script em-prompt em-ls em-hist em-pred em-glob em-dirs em-cmpl em-basic esh-opt em-banner em-alias ring esh-var esh-io esh-cmd esh-ext esh-proc esh-arg eldoc esh-groups eshell esh-module esh-mode esh-util hl-line saveplace idle-highlight-mode thingatpt ace-jump-mode-autoloads haml-mode-autoloads jade-mode-autoloads js-comint-autoloads js2-mode-autoloads markdown-mode-autoloads php-mode-autoloads scala-mode-autoloads slime-js-autoloads slime-repl-autoloads slime-autoloads starter-kit-autoloads unbound edmacro kmacro smex cl starter-kit-misc ido-ubiquitous ido paren starter-kit-defuns uniquify advice help-fns advice-preload magit-autoloads ido-ubiquitous-autoloads smex-autoloads find-file-in-project-autoloads idle-highlight-mode-autoloads paredit-autoloads unbound-autoloads package time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs) -- Preferred Version LLC m. 703.989.3562