Javascript DOM PageTransitionEvent persisted Property

Introduction

Find out whether the page was cached by the browser:

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<!DOCTYPE html>
<html>
<body onpageshow="myFunction(event)">
<p id="demo"></p>
<script>
function myFunction(event) {/*w w  w . ja v  a2 s. c  om*/
  if (event.persisted) {
    document.getElementById("demo").innerHTML = "The page was cached by the browser";
  } else {
    document.getElementById("demo").innerHTML = "The page was NOT cached by the browser";
  }
}
</script>

</body>
</html>

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.




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