From 38858337640a78f263d0592f5875495dee8f7ab7 Mon Sep 17 00:00:00 2001
From: Matthew Enderle <matthewenderle@mlestudios.net>
Date: Wed, 30 Nov 2022 23:11:42 -0600
Subject: [PATCH] fix: socketio spawn error (#19070)

* fix: socketio spawn error

Restarting supervisorctl fails when attempting to spawn the instance due to syntax.

* refactor: accurate expansion of optional chaining

Co-authored-by: Ankush Menat <ankushmenat@gmail.com>
---
 socketio.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/socketio.js b/socketio.js
index 242100baae..250f3744d1 100644
--- a/socketio.js
+++ b/socketio.js
@@ -303,7 +303,7 @@ function can_subscribe_list(args) {
 				}
 				return false;
 			} else if (res.status == 200) {
-				args?.callback(err, res);
+				args.callback && args.callback(err, res);
 				return true;
 			}
 			log("ERROR (can_subscribe_list): ", err, res);