bugfix

bricks/rtc.js

@@ -194,7 +194,7 @@ bricks.RTCClient = class extends bricks.VBox {
 		}));
 	}
 	async signaling_message_handle(event){
-		var datapkg = event.data;
+		var datapkg = JSON.parse(event.data);
 		var d = datapkg.data;
 		console.log('data received from server', d, event);
 		switch (d.type){