jquery uploadify插件解决跨域上传图片问题时，出问题

Question

            $('#fileId').uploadify({
                'uploader': 'uploadify.swf',
                'script': 'http://192.168.0.170:8080/fileUpload.action',
                //'script': '/fileIndex.jsp',
                'cancelImg': 'cancel.png',
                'method' : "POST",
                'scriptAccess' : 'always',
                'folder' : '/files',
                'onAllComplete'  :function(event,data)
                {
                    $('#result').html(data.filesUploaded +'个图片上传成功');
                },
                'onError': function(event, queueID, fileObj) {
　alert("文件:" + fileObj.name + "上传失败");
　}
            });代码如上，
响应服务器上的  crossdomain的设置如下<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM
"http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
        <site-control permitted-cross-domain-policies="master-only"/>
    <allow-access-from domain="*" secure="true" />
</cross-domain-policy> 
不跨域测试没问题，XML能获取到，跨域的话，就会出现HTTP Error，咋回事？？？

Answer 1

可以跨域，是这种方法是通过FLASH中转的