Prevent user use more than one browser tab?
<p>I am creating a app which user can access only from one session i.e. from one browser. We can handled multiple login with session/system cache that if user exists in cache then we will not logon him. </p>

<p>But if user click on any link from app itself and use open in new tab, thats how can we handle it. </p>

<p>So please share me your suggestion, how can I prevent that user can use only one window per session.</p>

<p>Thanks,</p>
