How we built it

Navigation preload for service workers

An API that enables the browser to send “preload” network requests for navigations before executing the fetch event handler in the service worker that intercepts the target URL. The worker has access to the preload response inside the fetch event handler. Common use cases would be to respond with the preload response directly, or use it to populate the response.



Editor's draft

Status in Chromium

Origin trial (launch bug) in:

  • Chrome for desktop release 57

Consensus & Standardization


Last updated on 2017-01-27