Unable to fetch title and message from push notification when app is in BACKGROUND

Question

I am trying to build react-native app which has push notification implemented using react-native-push-notification. Now, when the app is in 'foreground', I am able to handle the notification.title and notification.message and displaying in an alert in the app (Through, PushNotification.configure's onNotification). When the app in in 'background', I am able to receive notification and when I click it, the app gets opened up or comes to the foreground. Here, I want to fetch the same notification.title and notification.message to display, but don't see these fields in notification JSON (notification.data is also empty). Following is the code from PushNotification.configure's onNotification:

    onNotification: function (notification) {
        console.log('NOTIFICATION:', JSON.stringify(notification));
        if (notification.foreground) {
          if(notification.userInteraction) {
            Alert.alert("Title:" + notification.title + " Message:" + notification.message);
          } else {
            PushNotification.localNotification({
              id: notification.id,
              autoCancel: true,
              title: notification.title,
              message: notification.message,
              vibrate: true,
              vibration: 300,
              playSound: true,
              soundName: 'default',
            });
            PushNotification.cancelLocalNotifications({id: notification.id});
          }
        } else {
          console.log("notification.data:", JSON.stringify(notification.data));
          if(notification.userInteraction) {
            console.log("Showing modal with notification details...");
          }
        }
      },

Thank you for your time to look into this.