PageTransitionEvent persisted Property

Example

Find out whether the page was cached by the browser:

function myFunction(event) {
alert(event.persisted);
}

Description

The persisted property returns a Boolean value that indicates if the webpage is loaded directly from the server, or if the page is cached, when an onpageshow or onpagehide event occurs.

This property is read-only.

Syntax

event.persisted

Technical Details

Return Value:	A Boolean, indicating whether the webpage is loading from a cache. Possible values: true - The page is cached by the browser false - The page is NOT cached by the browser

Return Value:

A Boolean, indicating whether the webpage is loading from a cache.

Possible values:

true - The page is cached by the browser
false - The page is NOT cached by the browser

HTML DOM reference: The onpageshow Event

Browser Support

event.persisted is a DOM Level 3 (2004) feature.

It is fully supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	11