javascript - FCM Web后台服务人员

Question

当我的网页处于后台(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，但当我时，我的 page.js 中没有任何反应尝试发回帖子消息。

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]);
    });
}

页面.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，控制台日志会显示并播放声音:

客户端 1 收到消息:[object Object]

但永远不会在后台。

请有人帮忙，已经好几个月了。

Answer 1

终于找到我的问题了!

我正在使用通知部分发送 FCM 消息，但它阻止使用服务工作人员功能将消息发布回我的页面。

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