+(defcustom url-user-agent (format "User-Agent: %sURL/%s\r\n"
+ (if url-package-name
+ (concat url-package-name "/"
+ url-package-version " ")
+ "") url-version)
+ "User Agent used by the URL package for HTTP/HTTPS requests
+Should be a string or a function of no arguments returning a string."
+ :type '(choice (string :tag "A static User-Agent string")
+ (function :tag "Call a function to get the User-Agent string"))
+ :version "25.1"
+ :group 'url)
+