Ensure this._transport is valid in debug msg in _open

Fix #448
sockjs · Aug 22, 2019 · 27bd89a · 27bd89a
1 parent a49d141
commit 27bd89a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/main.js b/lib/main.js
@@ -309,7 +309,7 @@ SockJS.prototype._transportClose = function(code, reason) {
 };
 
 SockJS.prototype._open = function() {
-  debug('_open', this._transport.transportName, this.readyState);
+  debug('_open', this._transport && this._transport.transportName, this.readyState);
   if (this.readyState === SockJS.CONNECTING) {
     if (this._transportTimeoutId) {
       clearTimeout(this._transportTimeoutId);