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PageTransitionEvent

The PageTransitionEvent is fired when a document is being loaded or unloaded.

Properties

This interface also inherits properties from its parent, Event.

PageTransitionEvent.persisted Read only: Indicates if the document is loading from a cache.

Example

HTML

<!DOCTYPE html>
<html>
<body onpageshow="myFunction(event)">
</body>
</html>

JavaScript

function myFunction(event) { 
    if (event.persisted) {
        alert("The page was cached by the browser");
    } else {
        alert("The page was NOT cached by the browser");
    }
}

Specifications

Specification	Status	Comment
HTML Living Standard The definition of 'PageTransitionEvent' in that specification.	Living Standard	Initial definition

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	Yes	?	Yes	?	Yes	?
`persisted`	Yes	?	Yes	?	Yes	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	Yes	Yes	?	Yes	Yes	?	?
`persisted`	Yes	Yes	?	Yes	Yes	?	?

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