From 16f70a5be88803b3e55efad1d05a0be1a283e599 Mon Sep 17 00:00:00 2001
From: Mark Haslinghuis <mark@numloq.nl>
Date: Sat, 20 Apr 2024 23:24:40 +0200
Subject: [PATCH] Fix intermittent race condition (#3901)

Fix race condition
---
 src/js/serial_backend.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/js/serial_backend.js b/src/js/serial_backend.js
index b8d17283..10067c82 100644
--- a/src/js/serial_backend.js
+++ b/src/js/serial_backend.js
@@ -150,7 +150,7 @@ export function initializeSerialBackend() {
                         finishClose(toggleStatus);
                     }
 
-                    mspHelper.setArmingEnabled(true, false, onFinishCallback);
+                    mspHelper?.setArmingEnabled(true, false, onFinishCallback);
                 }
             }
         }