Available in Chrome 40+
This sample demonstrates basic service worker registration, in conjunction with pre-fetching of a list of specific resource URLs during the installation phase.
Visit
chrome://inspect/#service-workers
and click on the "inspect" link below
the registered service worker to view logging statements for the various actions the
service-worker.js
script is performing.
Since most of the action takes place during the service worker's install handler, and that is
only executed the very first time you visit this page (unless the service worker script changes),
it can be helpful to inspect the logging in a
Chrome Incognito window.