I found out about, and tested something very important to note about Google Chrome Browser and using header("Location: ") modifications in PHP.
When Google Chrome accesses a page (http://d3xt3r.com/braintest.phccesses a page (http://d3xt3r.com/braintest.php) with the following code:
<?php header ('HTTP/1.1 301 Moved Permanently'); header("Location: http://d3xt3r.com/braintest"); die(); ?>
The browser address bar will "fail" to update to the new address (http://d3xt3r.com/braintest from http://d3xt3r.com/braintest.php) until you refresh the page. To work around this, you must add a line of code.