Debugger entered--Lisp error: (wrong-type-argument stringp ((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>))
  ivy-string<((#("Eric S Fraga <e.fraga@ucl.ac.uk> writes:" 14 31 (mouse-face highlight gnus-callback gnus-button-push gnus-data (#<marker at 240 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> (gnus-button-mid-or-mail-regexp 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1)) gnus-string "e.fraga@ucl.ac.uk") 33 40 (mouse-face highlight gnus-callback gnus-cite-toggle gnus-data ">")) . 259) (((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281))
  sort(((((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281)) ivy-string<)
  ivy--reset-state(#s(ivy-state :prompt "URL to browse: " :collection ((((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281) (#("Eric S Fraga <e.fraga@ucl.ac.uk> writes:" 14 31 (mouse-face highlight gnus-callback gnus-button-push gnus-data (#<marker at 240 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> (gnus-button-mid-or-mail-regexp 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1)) gnus-string "e.fraga@ucl.ac.uk") 33 40 (mouse-face highlight gnus-callback gnus-cite-toggle gnus-data ">")) . 259) ("e.fraga@ucl.ac.uk" . 240)) :predicate nil :require-match t :initial-input nil :history nil :preselect nil :keymap nil :update-fn nil :sort t :frame #<frame emacs:  *Summary nntp+news.gwene.org:gmane.emacs.gnus.general* 0x12cfc2d0> :window #<window 11 on *Summary nntp+news.gwene.org:gmane.emacs.gnus.general*> :buffer #<buffer *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> :text nil :action (1 ("o" identity "default") ("i" #f(compiled-function (x) #<bytecode 0x5135335>) "insert") ("w" #f(compiled-function (x) #<bytecode 0x5135345>) "copy")) :unwind nil :re-builder nil :matcher nil :dynamic-collection nil :display-transformer-fn nil :directory "~/" :caller gnus-article-browse-url :current nil :def nil))
  ivy-read("URL to browse: " ((((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281) (#("Eric S Fraga <e.fraga@ucl.ac.uk> writes:" 14 31 (mouse-face highlight gnus-callback gnus-button-push gnus-data (#<marker at 240 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> (gnus-button-mid-or-mail-regexp 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1)) gnus-string "e.fraga@ucl.ac.uk") 33 40 (mouse-face highlight gnus-callback gnus-cite-toggle gnus-data ">")) . 259) ("e.fraga@ucl.ac.uk" . 240)) :predicate nil :require-match t :initial-input nil :preselect nil :def nil :history nil :keymap nil :sort t :dynamic-collection nil :caller gnus-article-browse-url)
  ivy-completing-read("URL to browse: " ((((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281) (#("Eric S Fraga <e.fraga@ucl.ac.uk> writes:" 14 31 (mouse-face highlight gnus-callback gnus-button-push gnus-data (#<marker at 240 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> (gnus-button-mid-or-mail-regexp 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1)) gnus-string "e.fraga@ucl.ac.uk") 33 40 (mouse-face highlight gnus-callback gnus-cite-toggle gnus-data ">")) . 259) ("e.fraga@ucl.ac.uk" . 240)) nil t nil nil nil nil)
  completing-read("URL to browse: " ((((#<marker at 285 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> . #<marker at 778 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) #<marker at 281 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*>) . 281) (#("Eric S Fraga <e.fraga@ucl.ac.uk> writes:" 14 31 (mouse-face highlight gnus-callback gnus-button-push gnus-data (#<marker at 240 in *Article nntp+news.gwene.org:gmane.emacs.gnus.general*> (gnus-button-mid-or-mail-regexp 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1)) gnus-string "e.fraga@ucl.ac.uk") 33 40 (mouse-face highlight gnus-callback gnus-cite-toggle gnus-data ">")) . 259) ("e.fraga@ucl.ac.uk" . 240)) nil t)
  (cond ((= (length urls) 1) (car (car urls))) ((> (length urls) 1) (completing-read "URL to browse: " (delete-dups urls) nil t)))
  (assoc (cond ((= (length urls) 1) (car (car urls))) ((> (length urls) 1) (completing-read "URL to browse: " (delete-dups urls) nil t))) urls)
  (setq target (assoc (cond ((= (length urls) 1) (car (car urls))) ((> (length urls) 1) (completing-read "URL to browse: " (delete-dups urls) nil t))) urls))
  (let ((inhibit-read-only t)) (if arg (goto-char (point-min)) (article-goto-body) (backward-char)) (setq pt (point)) (while (progn (widget-forward 1) (> (point) pt)) (setq pt (point)) (let* ((u (and t (cond (...) (...) (...))))) (if u (setq urls (cons (cons u pt) urls)) nil))) (setq target (assoc (cond ((= (length urls) 1) (car (car urls))) ((> (length urls) 1) (completing-read "URL to browse: " (delete-dups urls) nil t))) urls)) (if target (funcall-interactively #'widget-button-press (1+ (cdr target))) (message "No URLs found.")))
  (save-current-buffer (set-buffer gnus-article-buffer) (let ((inhibit-read-only t)) (if arg (goto-char (point-min)) (article-goto-body) (backward-char)) (setq pt (point)) (while (progn (widget-forward 1) (> (point) pt)) (setq pt (point)) (let* ((u (and t (cond ... ... ...)))) (if u (setq urls (cons (cons u pt) urls)) nil))) (setq target (assoc (cond ((= (length urls) 1) (car (car urls))) ((> (length urls) 1) (completing-read "URL to browse: " (delete-dups urls) nil t))) urls)) (if target (funcall-interactively #'widget-button-press (1+ (cdr target))) (message "No URLs found."))))
  (progn (save-current-buffer (set-buffer gnus-article-buffer) (let ((inhibit-read-only t)) (if arg (goto-char (point-min)) (article-goto-body) (backward-char)) (setq pt (point)) (while (progn (widget-forward 1) (> (point) pt)) (setq pt (point)) (let* ((u (and t ...))) (if u (setq urls (cons ... urls)) nil))) (setq target (assoc (cond ((= ... 1) (car ...)) ((> ... 1) (completing-read "URL to browse: " ... nil t))) urls)) (if target (funcall-interactively #'widget-button-press (1+ (cdr target))) (message "No URLs found.")))))
  (if (buffer-live-p (get-buffer gnus-article-buffer)) (progn (save-current-buffer (set-buffer gnus-article-buffer) (let ((inhibit-read-only t)) (if arg (goto-char (point-min)) (article-goto-body) (backward-char)) (setq pt (point)) (while (progn (widget-forward 1) (> (point) pt)) (setq pt (point)) (let* ((u ...)) (if u (setq urls ...) nil))) (setq target (assoc (cond (... ...) (... ...)) urls)) (if target (funcall-interactively #'widget-button-press (1+ (cdr target))) (message "No URLs found."))))))
  (let ((opened (and (gnus-buffer-live-p gnus-article-buffer) (get-buffer-window gnus-article-buffer t) (= gnus-current-article (progn (let (...) (and to ...)) (or (get-text-property ... ...) (gnus-summary-last-subject)))))) pt urls target) (if opened nil (gnus-summary-select-article) (gnus-configure-windows 'article)) (if (buffer-live-p (get-buffer gnus-article-buffer)) (progn (save-current-buffer (set-buffer gnus-article-buffer) (let ((inhibit-read-only t)) (if arg (goto-char (point-min)) (article-goto-body) (backward-char)) (setq pt (point)) (while (progn (widget-forward 1) (> ... pt)) (setq pt (point)) (let* (...) (if u ... nil))) (setq target (assoc (cond ... ...) urls)) (if target (funcall-interactively #'widget-button-press (1+ ...)) (message "No URLs found.")))))) (if (get-buffer-window gnus-summary-buffer) (progn (gnus-summary-expand-window opened))))
  gnus-article-browse-url(nil)
  funcall-interactively(gnus-article-browse-url nil)
  call-interactively(gnus-article-browse-url nil nil)
  command-execute(gnus-article-browse-url)