/**
  * Remove query arguments from the given URI
  *
  * @param string $redirectUri
  * @return string
  */
 protected function removeUriQueryArguments($redirectUri)
 {
     $uri = new \TYPO3\Flow\Http\Uri($redirectUri);
     $uri->setQuery(NULL);
     $redirectUri = (string) $uri;
     return $redirectUri;
 }