PageTransitionEvent

The PageTransitionEvent event object is available inside handler functions for the pageshow and pagehide events, 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>
</body>
</html>

JavaScript

window.addEventListener('pageshow', myFunction);

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 compatibility

BCD tables only load in the browser

See also