Fiddler 4

//Customize Rules 
//在class Handlers中加入以下代码 可以在Fiddler右边栏的Log标签里，看到WebSocket的数据包
static function OnWebSocketMessage(oMsg: WebSocketMessage) {
    FiddlerApplication.Log.LogString(oMsg.ToString());
}

//在函数OnBeforeResponse里面添加下面代码：
if (oSession.oRequest["User-Agent"].indexOf("Android") > -1 && oSession.HTTPMethodIs("CONNECT")) {
            oSession.oResponse.headers["Connection"] = "Keep-Alive";
}

//修改后
static function OnBeforeResponse(oSession: Session) {
        if (m_Hide304s && oSession.responseCode == 304) {
            oSession["ui-hide"] = "true";
        }
        if (oSession.oRequest["User-Agent"].indexOf("Android") > -1 && oSession.HTTPMethodIs("CONNECT")) {
            oSession.oResponse.headers["Connection"] = "Keep-Alive";
        }
    }