ExtendableEvent.waitUntil()

Baseline

20184

ExtendableEvent.waitUntil() waitUntil()

install waitUntil() (installing) waitUntil() (installed)

activate waitUntil() waitUntil() fetch push

waitUntil()

waitUntil(promise)

Promise

(undefined)

install waitUntil()

addEventListener("install", (event) => {
  const preCache = async () => {
    const cache = await caches.open("static-v1");
    return cache.addAll(["/", "/about/", "/static/styles.css"]);
  };
  event.waitUntil(preCache());
});


Service Workers Nightly # dom-extendableevent-waituntil

ServiceWorker
Promise

MDN

MDN 2024729

GitHub

API
ExtendableEvent
1. ExtendableEvent()
1. waitUntil()
1. Event
Service Workers API