Sanitize::is_https_domain( string $domain ): bool

380    protected function is_https_domain(string $domain)381    {382        $domain = trim($domain, '. ');383        $segments = array_reverse(explode('.', $domain));384        $node = &$this->https_domains;385        foreach ($segments as $segment) {//Explore the tree386            if (isset($node[$segment])) {387                $node = &$node[$segment];388            } else {389                break;390            }391        }392        return $node === true;393    }