- handle-file #!optional procparameter
The handler for files. If the requested URL points to a file, this handler is invoked to serve the file. It is a procedure of one argument, the path (a string) relative to the webroot. Defaults to a procedure which sets the content-type and determines a handler based on the file-extension-handlers, or send-static-file if none was found and the method was HEAD or GET (otherwise it replies with 405 "Method Not Allowed").