.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;
.then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return;