varible listen_ports should be in case which nice_host_type is proxy_host

Author: xialj

backend/internal/nginx.js

@@ -233,8 +233,9 @@ const internalNginx = {
 			// Set the IPv6 setting for the host
 			host.ipv6 = internalNginx.ipv6Enabled();
 
-			let listen_ports = [];
+			
 			if ( nice_host_type === 'proxy_host' ) {			
+			    let listen_ports = [];
 				host.domain_names.map(function (domain_name) {
 					if ( domain_name.indexOf(":") > 0 ){
 						listen_ports.push(parseInt(domain_name.substring(domain_name.indexOf(":")+1)));