BackgroundFetchUpdateUIEvent()

The BackgroundFetchUpdateUIEvent() constructor creates a new BackgroundFetchUpdateUIEvent object. This constructor is not typically used as the browser creates these objects itself and provides them to background fetch event callbacks.

Syntax

let BackgroundFetchEvent = new BackgroundFetchEvent(type, BackgroundFetchEventInit);

Parameters

type

A string representing the name of the event. One of:

• onbackgroundfetchsuccess
• onbackgroundfetchfail

BackgroundFetchEventInit

An object including the following:

A BackgroundFetchRegistration.

The background fetch registration instance.

bubbles Optional

A boolean value indicating whether the event bubbles. The default is false.

cancelable Optional

A boolean value indicating whether the event can be cancelled. The default is false.

composed Optional

A boolean value indicating whether the event will trigger listeners outside of a shadow root (see Event.composed for more details). The default is false.

Specifications

Browser compatibility

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