BackgroundFetchEvent: registration property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

We’d love to hear your thoughts on the next set of proposals for the JavaScript language. You can find a description of the proposals here.
Please take two minutes to fill out our short survey.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Note: This feature is only available in Service Workers.

The registration read-only property of the BackgroundFetchEvent interface returns a BackgroundFetchRegistration object.

Value

A BackgroundFetchRegistration.

Examples

In this example, if the user clicks on the user interface displaying the download progress, this fires the backgroundfetchclick event. The current BackgroundFetchRegistration is returned by calling event.registration.

js
addEventListener("backgroundfetchclick", (event) => {
  console.log(event.registration);
});

Specifications

Specification
Background Fetch
# dom-backgroundfetchevent-registration

Browser compatibility