174,175c174,181
< 			if ($url_parts['port'] !== 80) {
< 				$out .= ':' . $url_parts['port'];
---
> 			if( !empty($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'http' && $url_parts['port'] !== 80 ) {
> 				$out .= ':' . $url_parts['port']; // Handle custom http scheme port
> 			}
> 			else if( !empty($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https' && $url_parts['port'] !== 443 ) {
> 				$out .= ':' . $url_parts['port']; // Handle custom https scheme port
> 			}
> 			else if( empty($url_parts['scheme']) || (strtolower($url_parts['scheme']) !== 'http' && strtolower( $url_parts['scheme']) !== 'https') ) {
> 				$out .= ':' . $url_parts['port']; // specify port when scheme is unknown