feat(vue-next): fix websocket event not bind

driver/js/packages/hippy-vue-next/src/runtime/websocket/websocket.ts

@@ -52,9 +52,6 @@ const WEB_SOCKET_MODULE_NAME = 'websocket';
 // native event name for websocket
 const WEB_SOCKET_NATIVE_EVENT = 'hippyWebsocketEvents';
 
-// whether the websocket event listener has been bound
-let isBindWebsocketEvent = false;
-
 /**
  * determine whether it is a legitimate websocket event
  *
@@ -116,11 +113,7 @@ class WebSocket {
       ...extrasHeaders,
     };
 
-    if (!isBindWebsocketEvent) {
-      // The bus is global, if it is multi-instance, there may be problems, to be verified fixme
-      isBindWebsocketEvent = true;
-      EventBus.$on(WEB_SOCKET_NATIVE_EVENT, this.onWebSocketEvent);
-    }
+    EventBus.$on(WEB_SOCKET_NATIVE_EVENT, this.onWebSocketEvent);
 
     if (!url) {
       throw new TypeError('Invalid WebSocket url');