diff --git a/package.json b/package.json
index d061533..9b505d5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "colyseus.js",
-  "version": "0.15.21",
+  "version": "0.15.22",
   "description": "Colyseus Multiplayer SDK for JavaScript/TypeScript",
   "author": "Endel Dreyer",
   "license": "MIT",
diff --git a/src/HTTP.ts b/src/HTTP.ts
index e72f23b..daa75a7 100644
--- a/src/HTTP.ts
+++ b/src/HTTP.ts
@@ -28,7 +28,7 @@ export class HTTP {
             const status = e.statusCode; //  || -1
             const message = e.data?.error || e.statusMessage || e.message; //  || "offline"
 
-            if (status === undefined && message === undefined) {
+            if (!status && !message) {
                 throw e;
             }