无法获取使用Firebase触发的通知

Question

我通过通知api进行了通知设置，以在页面加载时触发。一旦它开始工作，我将在以后添加一些cookie，仅显示一次。我在MVC项目上具有相同的设置，并且没有任何问题。该网站是通过.html文件传送的，不会触发通知。 http://www.freedomoveraddiction.org

      // Initialize Firebase
        var config = {
            apiKey: "####",
            authDomain: "###.firebaseapp.com",
            databaseURL: "https://###.firebaseio.com",
            projectId: "foa-notifications",
            storageBucket: "###.appspot.com",
            messagingSenderId: "###"
        };

        firebase.initializeApp(config);

        //get database
        var database = firebase.database().ref().child("notifications/");


        if (Notification.permission === "granted") {

            database.on('child_added', function (data, ChildKey) {

                if (Notification.permission === "granted") {
                    var title = data.val().title;
                    var action = data.val().action
                    var message = data.val().message;
                    var icon = data.val().icon;
                    var key = ChildKey;
                    console.log(action);

                    var e = new Notification(title, {
                        body: message,
                        icon: icon,
                        requireInteraction: true,
                        click: action,
                        tag: key
                    });
                }

            });
        } else {
            if (Notification.permission !== 'denied') {
                Notification.requestPermission().then(function (permission) {
                    if (Notification.permission === 'granted') {
                        var e = new Notification(title, {
                            body: message,
                            icon: icon,
                            requireInteraction: true,
                            click: action,
                            tag: key
                        });
                    }
                });
            }
        }