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.

Documentation

Specification

Specification link


Specification being incubated in a Community Group

Status in Chromium

Blink>ServiceWorker


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Owners

Search tags

service, worker, workers, serviceworker, serviceworkers, preload, navigation,

Last updated on 2020-11-09