private function load_handler_as_file($handler) {
	$path = $this->find_handler_path($handler);
	require_once $path;
	
	$class_name = str_replace('/', '\\', $handler);
	if ($this->auto_instantiation && is_callable($class_name)) {
		new $class_name($this->url, $this->method, $this->arguments);
	}
}