Detect browser/tab close in ipad using javascript

See more:

Javascript

Mobile

jQuery

beforeunload

and on

beforeunload

works fine in normal browser in desktop but the same does not work in iphone/ipad

i tried this from stackoverflow

var isOnIOS = navigator.userAgent.match(/iPad/i)|| navigator.userAgent.match(/iPhone/i);
var eventName = isOnIOS ? "pagehide" : "beforeunload";

window.addEventListener(eventName, function (event) { 
    
    ...
} );

this also does not detect browser/tab close

is there a way i can detect it in ipad/iphone

i am using it in asp.net

What I have tried:

var isOnIOS = navigator.userAgent.match(/iPad/i)|| navigator.userAgent.match(/iPhone/i);
var eventName = isOnIOS ? "pagehide" : "beforeunload";

window.addEventListener(eventName, function (event) {

...
} )