dojo.io.iframe.send在dojo 1.8中第二次不发送请求

this._deferred = dojo.io.iframe.send({
        url: "/Some/Servie",
        method: "post",
        handleAs: 'html',
        content: {},
        load: function(response, ioArgs){
            //DO successfull callback
        },
        error: function(response, ioArgs){  
            // DO Failer callback
        }
    });

脚步

>单击“提交”按钮发送请求并成功获得响应
>再次点击提交按钮…请求永不发送…

感谢任何帮助

dojo.io.iframe._currentDfd = null; //insert this line
dojo.io.iframe.send
({...

*已在Chrome版本25.0.1364.152 m中验证

资料来源：http://mail.dojotoolkit.org/pipermail/dojo-interest/2012-May/066109.html