javascript - Beforeunload is not working to redirect user to another page, how can I redirect user to another page/url when he attempts to close a window/tab? -

my following code isn't working redirect user page:

$(window).on('beforeunload',function(){                         window.location.href="http://www.google.com;                     }) ; 

i want user redirected page when attempts close tab. what's alternative , appropriate way achieve this?

*don't it*

but possible user's permission; can achieve (took me while find website happy in frame)

window.onbeforeunload = function () {     window.settimeout(function () { // escape function context         window.location = 'http://bbc.co.uk';     }, 0);     window.onbeforeunload = null;   // necessary prevent infinite loop                                     // kills browser     return 'press "stay on page" go bbc website!';         // pressing leave still leave, may fired first anyway } 

demo