反应 Firebase 成功消息但没有消息

如何解决反应 Firebase 成功消息但没有消息

经过长时间的努力和尝试不同的事情后： 我无法收到 firebase 消息（通过邮递员/firebase 控制台发送

firebase-messaging.sw.js

importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-messaging.js');

firebase.initializeApp({
  apiKey: 'AIzaSy....',authDomain: '....firebaseapp.com',projectId: '...-20254',storageBucket: '....appspot.com',messagingSenderId: '6962....',appId: '1:696....:web:7d0a.....',measurementId: 'G-Q....',});

const messaging = firebase.messaging();

messaging.setBackgroundMessageHandler(function (payload) {
  console.log(
    '[firebase-messaging-sw.js] Received background message ',payload
  );

  const notificationTitle = 'Background Message Title';
  const notificationoptions = {
    body: 'Background Message body.',icon: '/firebase-logo.png',};

  self.registration.showNotification(notificationTitle,notificationoptions);
});

*** 也尝试了以下作为 setBackgroundMessageHandler:

messaging.setBackgroundMessageHandler(function(payload) {
  console.log('back ')
  const promiseChain = clients.matchAll({
      type: "window",includeUncontrolled: true
    }).then(windowClients => {
      for (let i = 0; i < windowClients.length; i++) {
        const windowClient = windowClients[i];
        windowClient.postMessage(payload);
      }
    }).then(() =>{
      return registration.showNotification("my notification title");
    });
    console.log(promiseChain)
    self.registration.showNotification('title',{body:'body'});
  return promiseChain;
});

push-notification.js

import firebase from 'firebase';
import {sendMessage} from './sendMessage';


firebase.initializeApp({
  apiKey: 'AIzaSy....',});

const messaging = firebase.messaging();
export const ask = async () => {
    await messaging.requestPermission()
    const token = await messaging.getToken();
    console.log('user token: ',token);
    sendMessage(token); // sending with POST,which works
    return token;
  }

  messaging.onMessage(function (payload) {
  alert('Foreground message fired!');
  console.log(payload);
});

ma​​nifest.json

{
  "short_name": "app name","name": "Create React App Sample","start_url": ".","display": "standalone","theme_color": "#000000","background_color": "#ffffff","gcm_sender_id": "69...."
}

App.js

if ('serviceWorker' in navigator) {
  navigator.serviceWorker.register('./firebase-messaging-sw.js')
    .then(function(registration) {
      console.log('Registration successful,scope is:',registration.scope);
      ask(); // request premission at push-notification.js
    }).catch(function(err) {
      console.log('Service worker registration Failed,error:',err);
    });
  }

控制台和网络： 成功对象

multicast_id: 4369108....
success: 1
failure: 0
canonical_ids: 0
results: Array(1)
0: {message_id: "0:16099......"}
length: 1
__proto__: Array(0)
__proto__: Object

任何帮助将不胜感激！