self.addEventListener('notificationclick', function (event) { event.notification.close() // eslint-disable-next-line no-undef const promiseChain = clients.matchAll({ type: 'window', includeUncontrolled: true }).then((windowClients) => { // eslint-disable-next-line no-unused-vars const matchingClient = null for (let i = 0; i < windowClients.length; i++) { const windowClient = windowClients[i] if (windowClient.url === event.notification.data.url) { return windowClient.focus() } } }) event.waitUntil(promiseChain) })