Web/API/ContentIndexEvent

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The ContentIndexEvent interface of the Content Index API defines the object used to represent the contentdelete event.

This event is sent to the global scope of a ServiceWorker. It contains the id of the indexed content to be removed.

The contentdelete event is only fired when the deletion happens due to interaction with the browser's built-in user interface. It is not fired when the ContentIndex.delete method is called.

Constructor

ContentIndexEvent(): Creates and returns a new ContentIndexEvent object whose type and other options are configured as specified.

Properties

In addition to the properties listed below, this interface inherits the properties of its parent interface, ExtendableEvent.

id Read only: A String which identifies the deleted content index via it's id.

Methods

While ContentIndexEvent offers no methods of its own, it inherits any specified by its parent interface, ExtendableEvent.

Examples

This example shows the sevice worker script listening for the contentdelete event and logs the removed content index id.

self.addEventListener('contentdelete', (event) => {
  console.log(event.id);
  
  // logs content index id, which can then be used to determine what content to delete from your cache

});

Specifications

Specification	Status	Comment
Content Index APIThe definition of 'ContentIndexEvent' in that specification.	Editor's Draft	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ContentIndexEvent` Experimental'	Chrome No support No	Edge Full support 84	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android Full support 84	Chrome Android Full support 84	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.