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self.onmessage = event => {
// Checking for a particular value, so more tests can be added in future.
if (event.data !== 'test-shownotification') return;
// Random number, so we can identify the notification we create.
const random = Math.random().toString();
const start = Date.now();
event.waitUntil(
self.registration.showNotification('test', {
tag: random,
// ?pipe=trickle(d2) delays the icon request by two seconds
icon: 'icon.png?pipe=trickle(d2)'
}).then(() => {
const resolveDuration = Date.now() - start;
return self.registration.getNotifications().then(notifications => {
event.source.postMessage({
type: 'notification-data',
resolveDuration,
// Check if our notification is in notifications
notificationReturned: notifications.some(n => n.tag == random)
});
});
})
);
};
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