importScripts('https://example.com/v1.1.0/index.js'); importScripts('https://example.com/index.abcd1234.js'); Starting in Chrome 78, each time an update check is performed for a top-level service worker file, Chrome will also check whether or not the contents of any imported scripts have changed. If they have, it will trigger the full service worker update flow. This brings Chrome into conformance