protected function _getRouteMethods(Request $r, string $method)
  {
    $method = ucfirst($method);
    if($r->isXmlHttpRequest())
    {
      yield 'ajax' . $method;
      yield 'ajax' . ucfirst(strtolower($r->getMethod())) . $method;
    }

    yield strtolower($r->getMethod()) . $method;
    yield 'process' . $method; //support for all methods
    return null;
  }