离子FCM通知点击背景不接收数据

Question

我正在使用Ionic FCM和Laravel FCm软件包将通知发送到应用程序。

令牌已存储在数据库中，通知也已在应用程序中接收。问题是当应用程序处于后台并且轻按了通知时，特定页面无法打开。

用于处理被窃听的通知的代码来自Ionic docs：

console.log('This will print in all cases');
this.fcm.onNotification().subscribe(data => {
  console.log('this will will print when app in background', data);

  if (data.wasTapped) {
    console.log('This never gets printed', data);
    console.log("Received in background");
    this.nav.setRoot(CommunicationPage, { 'message_id': data.page_id });
  } else {
    console.log('Data: this will will print when app in background', data);
    this.nav.push(CommunicationPage, { 'message_id': data.page_id });
    console.log("Received in foreground");
  };
});