how to disable the browser back button in javascript.
Dont!
You can't, and you shouldn't.
every other approach / alternative will only cause really bad user engagement.
Put This script on head of your page and change 'pagename' to your page name. but anyway , here is a trick :
<script type = "text/javascript" > history.pushState(null, null, 'pagename'); window.addEventListener('popstate', function(event) { history.pushState(null, null, 'pagename'); }); </script>
