[fix] fix NodeWebSocket declaration (#613)

NodeWebSocket was be required ONLY if global variables self and WebSocket were not defined. Closes #609
socketio · Sep 13, 2019 · 0eeaa7a · 0eeaa7a
1 parent 242ea9e
commit 0eeaa7a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/transports/websocket.js b/lib/transports/websocket.js
@@ -15,7 +15,9 @@ if (typeof WebSocket !== 'undefined') {
   BrowserWebSocket = WebSocket;
 } else if (typeof self !== 'undefined') {
   BrowserWebSocket = self.WebSocket || self.MozWebSocket;
-} else {
+}
+
+if (typeof window === 'undefined') {
   try {
     NodeWebSocket = require('ws');
   } catch (e) { }