code: public function addReportUri(string $reportUri):bool
      {
          if (!filter_var($reportUri, FILTER_VALIDATE_URL)) {
              throw new MiddlewareException(
                  $this,
                  sprintf(
                      "'%s' is not a valid URI and can not be set as the CSP report URI",
                      $reportUri
                  )
              );
          }
          if (!in_array($reportUri, $this->tags['report-uri'])) {
              $this->tags['report-uri'][] = $reportUri;
              return true;
          }
          return false;
      }
docs: Sets the CSP's report URI.
  
  @link https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/report-uri
  @param string $reportUri
  @throws MiddlewareException
  @return bool