ServiceWorkerRegistration: updatefound event
The updatefound event of the
ServiceWorkerRegistration interface is fired any time the ServiceWorkerRegistration.installing property acquires a new service worker.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
js
addEventListener("updatefound", (event) => {});
onupdatefound = (event) => {};
Event type
A generic Event.
Examples
js
const registration = await navigator.serviceWorker.getRegistration();
if (registration) {
registration.addEventListener("updatefound", () => {
console.log("Service Worker update found!");
});
}
Specifications
| Specification |
|---|
| Service Workers # dom-serviceworkerregistration-onupdatefound |
Browser compatibility
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