Custom Message not Working in Chrome 51 and IE 11

[Shantanu38]

I am trying to send custom message in alert box. It didnt worked in my application. below is code snippet.I have created variable .

$('#searchCriteria').areYouSure(
{
'message' : userNavigateAwayMessage
});

Then i verified it on your sites, its not showing custom messages too.

[lenamtl]

For security reason this cannot be modified, this message is generated by the browser.
I have not found any way to bypass this message using this script or similar script.

[JFern93]

I hope there is a workaround on this or any way to bypass the security. :(

[KrunchMuffin]

never will be

https://developers.google.com/web/updates/2016/04/chrome-51-deprecations?hl=en