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function unregisterAllServiceWorker() {
return navigator.serviceWorker.getRegistrations().then(registrations => {
return Promise.all(registrations.map(r => r.unregister()));
});
}
async function getActiveServiceWorker(script) {
await unregisterAllServiceWorker();
const reg = await navigator.serviceWorker.register(script);
add_completion_callback(() => reg.unregister());
await navigator.serviceWorker.ready;
return reg;
}
async function closeAllNotifications() {
for (const n of await registration.getNotifications()) {
n.close();
}
}
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