Firebase客户端不接收邮件

我有以下的Node.js script ：

  var registrationToken = "Long Token"; var serviceAccount = require("./config/ServiceAccount.json"); var payload = { data: { score: "850", time: "2:45" } }; admin.initializeApp({ credential: admin.credential.cert(serviceAccount), databaseURL: fireBaseConfig.databaseURL }); admin.messaging().sendToDevice(registrationToken, payload) .then(function(response) { // See the MessagingDevicesResponse reference documentation for // the contents of response. console.log("Successfully sent message:", response); }) .catch(function(error) { console.log("Error sending message:", error); }); 

运行时，我得到了一个success回应：

  Successfully sent message: { results: [ { messageId: '0:1502813815410638%e609af1cf9fd7ecd' } ], canonicalRegistrationTokenCount: 0, failureCount: 0, successCount: 1, multicastId: 5249778920849394000 } 

然后我有我的客户：

  firebase.initializeApp(config); var messaging = firebase.messaging(); messaging.requestPermission() .then(function () { messaging.onMessage(function(payload) { console.log("Message received. ", payload); // ... }); console.log('I am in here'); return messaging.getToken() .then(function (currentToken) { console.log(currentToken); }) .catch(function (err) { console.log('An error occurred while retrieving token. ', err); showToken('Error retrieving Instance ID token. ', err); setTokenSentToServer(false); }); }).catch(function (err) { console.log('Error'); }); messaging.onMessage(function(payload) { console.log("Message received. ", payload); // ... }); 

现在我首先（作为我的客户端）进入网站，然后我在控制台中得到令牌，然后在后端（Node.js）中使用该令牌并发送消息（而客户端的点击仍处于打开状态）然而没有任何反应

谁能告诉我我做错了什么？