[]关于HttpRequest报错问题

    var xmlHttp = new Laya.HttpRequest();

    xmlHttp.open("POST", url, true);

    xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=utf-8");

    xmlHttp.once(Event.COMPLETE,this,onHttpRequestComplete);

    xmlHttp.once(Event.ERROR,this,errorHandler);

    xmlHttp.on(Event.PROGRESS,this,processHandler);

    function onHttpRequestComplete(e){

        

    };

    function processHandler(data){

        console.log(data);

    };

    function errorHandler(data){

    };

    xmlHttp.send("http://","","post","text");