define-word-error.el

;; *MESSAGES* buffer after using define-word
;; error in process filter: apply: Wrong type argument: char-or-string-p, nil
;; error in process filter: Wrong type argument: char-or-string-p, nil
;;
;; Most likely it's unrelated to url-retrieve, since if I run this from the running instance's scratch buffer:

(url-retrieve
 "http://download.savannah.gnu.org/releases/color-theme/color-theme-6.6.0.tar.gz"
 (lambda (s)
   (re-search-forward "\r?\n\r?\n")
   (write-region (point) (point-max) "/Temp/bla")))
   
;; Then C:\Temp\bla gets written succesfully.