code: public function handle(Request $request)
  	{
  		$res = $this->match($request);
  		if ($res && !$res->ignoreDefaultHeaders) $res->header($this->defaultHeaders);
  		return $res;
  	}
docs: Handle request
  
  Also appends default headers if ignoreDefaultHeaders is not true
  
  @param Request $request request to handle
  
  @return Response|null|bool