Need URL parameter to persist through user taking the quiz

Used the code inside page.tpl.php to accomplish it, thanks:

// if ?view=clean is in referrer's URL redirect to the stripped template
if (!empty($_SERVER['HTTP_REFERER'])) {
	$parts = parse_url($_SERVER['HTTP_REFERER']);
	parse_str($parts['query'], $query);
	if ($query['view'] === 'clean') {
		$goto_url='https://'.$_SERVER[HTTP_HOST].$_SERVER[REQUEST_URI];
		drupal_goto($goto_url, array('query' => array('view' => 'clean')));
	}
}