On click success button with sweetalert2 go to url

On click success button with sweetalert2 go to url

I cant work out how after the click of the success button below, the page isnt redirecting.

  1. <script>
    if (window.location.search.indexOf('e=success') > -1) {
        swal({
          title: 'Request Delivered',
          text: 'You can continue with your search.',
          type: 'success',
        },
        function(){
            window.location.href='index2.php';
        }
    )};
    </script>