FCM web后台服务工作者

Question

当我的网页在后台(窗口最小化，或其他标签)时，我无法接收推送消息，它只显示正常的通知，但当我尝试回送post消息时，我的page.js中没有任何反应。

sw.js：

messaging.setBackgroundMessageHandler(function (payload) {
    console.log('[firebase-messaging-sw.js] Received background message ', payload);
    const title = '¡Mensaje Nuevo!';
    const options = {
        body: 'conductor: ' + payload.data.chofer_id + ' - ' + payload.data.mensaje,
        icon: '/icono.png',
    };

    send_message_to_all_clients('sound');

    return self.registration.showNotification(title, options);
});

function send_message_to_all_clients(msg) {
    clients.matchAll().then(clients => {
        clients.forEach(client => {
            send_message_to_client(client, msg).then(m => console.log("SW Received Message: " + m));
        })
    })
}

function send_message_to_client(client, msg) {
    return new Promise(function (resolve, reject) {
        var msg_chan = new MessageChannel();

        msg_chan.port1.onmessage = function (event) {
            if (event.data.error) {
                reject(event.data.error);
            } else {
                resolve(event.data);
            }
        };

        client.postMessage("SW Says: '" + msg + "'", [msg_chan.port2]);
    });
}

page.js

// Handler for messages coming from the service worker
navigator.serviceWorker.addEventListener('message', function (event) {
    console.log("Client 1 Received Message: " + event.data);
    $.playSound('Sounds/Tethys.mp3');
});

当我在网页上发送消息时，会显示控制台日志并播放声音：

客户端1收到消息: object Object

但从来不在后台。

请帮帮忙，已经好几个月了。

Answer 1

我终于找到我的问题了！

我正在发送带有通知部分的FCM消息，并且使用service worker函数阻止将消息发送回我的页面。

{
  "to": "<token>",
 "notification": { // this was the problem
    "body": "test"
  }
  "data": {
    "chofer_id": 3,
    "mensaje": "hola"
  }
}