https://brzozow.pl/sw.js

1self.addEventListener('push', function (event) {
2    if (!(self.Notification && self.Notification.permission === 'granted')) {
3        return;
4    }
5
6    var data = {};
7
8    // Get data from notification
9    if (event.data) {
10        data = event.data.json();
11    }
12
13    var title = data.Title;
14    var message = data.Message;
15    var icon = data.Icon;
16    var link = data.Link;
17
18    // Show received notification
19    event.waitUntil(self.registration.showNotification(title, {
20        body: message,
21        icon: icon,
22        badge: icon,
23        data: { url: link }
24    }));
25});
26
27self.addEventListener('notificationclick', function (event) {
28    var data = "";
29    if (event.notification.data) {
30        data = event.notification.data;
31    }
32    var url = data.url;
33    if (url) {
34        event.waitUntil(
35            clients.matchAll({ type: 'window' }).then(windowClients => {
36                // Check if there is already a window/tab open with the target URL
37                for (var i = 0; i < windowClients.length; i++) {
38                    var client = windowClients[i];
39                    // If so, just focus it.
40                    if (client.url === url && 'focus' in client) {
41                        return client.focus();
42                    }
43                }
44                // If not, then open the target URL in a new window/tab.
45                if (clients.openWindow) {
46                    return clients.openWindow(url);
47                }
48            })
49        );
50    }
51})