Source code of website not showing, how is it done and how to see the source code


I recently came across a PHP website where when I tried to view the page source code, I only got the following statement:-
<script language=‘javascript’ type=‘text/javascript’>window.location.href = ‘’;</script>

The website name is :-

This is shown when I use Firefox, but source code is shown properly on IE.

Can you tell me if there is some trick or is it a bug?

Thank you

All that’s doing is relocating you to login.php - IE is either showing the output HTML of login.php, or it’s logged in (whereas firefox isn’t).