final public function static_file(
		string $path, int $cache=0, $disposition=null
	) {
		self::$logger->info("Router: static: '$path'.");
		if (!method_exists($this, 'static_file_custom'))
			return $this->static_file_default($path, $cache,
				$disposition);
		return $this->static_file_custom($path, $cache, $disposition);
	}