Piwik\Twig::addFilter_onlyDomain PHP Method

    private function addFilter_onlyDomain()
    {
        $domainOnly = new \Twig_SimpleFilter('domainOnly', function ($url) {
            $parsed = parse_url($url);
            return $parsed['scheme'] . '://' . $parsed['host'];
        });
        $this->twig->addFilter($domainOnly);
    }