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BackgroundFetchEvent: registration property

Limited availability

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

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.

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

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
registration 74 79 No 62 No 74 No 53 No 11.0 No No

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https://developer.mozilla.org/en-US/docs/Web/API/BackgroundFetchEvent/registration