alter

screenIos/WXtrialInterface.html

@@ -714,7 +714,6 @@
 
 		webSocketWorker.onmessage = function (event) {
 			var input = event.data;
-			ws.send('ping');
 			if (input[0] == 0xff && isAudioPlay && renderCount >= 3) {
 				decodeAAC(input);
 			}

screenIos/websocket.js

@@ -49,6 +49,7 @@ function doConnect() {
 
 	ws.addEventListener('message', function (event) {
 		var input = new Uint8Array(event.data);
+		ws.send('ping');
 		if (input[0] == 0xff) {
 			self.postMessage(input);
 		} else {
@@ -58,6 +59,7 @@ function doConnect() {
 
 	self.addEventListener('message', function (e) {
 		ws.send(e.data);
+		ws.send('ping');
 	}, false);
 }