disable browser back button using javascript in asp net is not working

<script type="text/javascript" language="javascript">
       function DisableBackButton() {
           window.history.forward()
       }
       DisableBackButton();
       window.onload = DisableBackButton;
       window.onpageshow = function (evt) { if (evt.persisted) DisableBackButton() }
       window.onunload = function () { void (0) }
   </script>

<script type="text/javascript">
      'toolbar=no,location=no,menubar=no,scrollbars=yes');
      
       function disableBackButton() {
           debugger;
           window.history.forward();
       }
       setTimeout("disableBackButton()", 0);
   </script>