From 01a7bed1c9de5b49a8498e4e1781e48e7ce97f59 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Mon, 29 Aug 2022 00:13:33 +0200
Subject: [PATCH] Fix this.ping()

---
 src/usimp.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usimp.ts b/src/usimp.ts
index 6444fda..b893887 100644
--- a/src/usimp.ts
+++ b/src/usimp.ts
@@ -328,7 +328,7 @@ export class Session {
                         'data': data
                     }));
 
-                    if (cb === null) {
+                    if (cb === undefined) {
                         const responseData = await response;
                         const endTime = performance.now();
                         responseData.duration = endTime - startTime;