public function amOnAction($action, $params = [])
    {
        $namespacedAction = $this->actionWithNamespace($action);

        $domain = $this->app['routes']->getByAction($namespacedAction)->domain();
        $absolute = ! is_null($domain);

        $url = $this->app['url']->action($action, $params, $absolute);
        $this->amOnPage($url);
    }