Kristian on "[Plugin: W3 Total Cache] How to remove " ?repeat=w3tc " from query string"

My code above breaks pages with a query string (like the search page). The following code fix this issue:

if (strpos($_SERVER['QUERY_STRING'], 'repeat=w3tc') !== false) {
 $uri = explode('?', $_SERVER['REQUEST_URI']);
 $queryString = '';
 if (isset($uri[1])) {
  $queryString = trim(str_replace('repeat=w3tc', '', $uri[1]), '&');
  $queryString = (!empty($queryString)) ? '?' . $queryString : '';
 }
 wp_redirect(home_url($uri[0] . $queryString), 301);
 exit;
}