1.7.0 XMLHttpRequest读到的内容是空的，1.6.2正常

Creator 2.x
#1

1.7.0 XMLHttpRequest读到的内容是空的，1.6.2正常

#2

代码贴出来看看

#3 
代码 一
    global.Utils.httpRequest(remote_url, "", function(xhr, filename){
        cc.log("responseText xxxxxxxxxxxxxxxxxx", JSON.stringify(xhr), typeof xhr.responseText)
        var configs = JSON.parse(new String(xhr.responseText) )
        cc.log("xxxxxxxxxxxxxxxxxx-----------",xhr.responseText)
        for (var index = 0; index < self.pv_ads.content.childrenCount; index++) {
            var child = self.pv_ads.content.children[index]
            var cfg = configs[index] || null
            child.active = configs[index] != null;
            if(cfg) {
                self.total_page_count++
                var script = child.getComponent("BannerItem")
                script.init(configs[index])
            } 
        }
        self.pv_ads.scrollToPage(0, 0);
    })

代码2
    httpRequest : function(address, filename, callback){
        var xhr = new XMLHttpRequest()
        var self = this
        xhr.onreadystatechange = function(){
            if (xhr.readyState == 4 && (xhr.status >= 200 && xhr.status < 400)) {
                if(callback) {
                    callback(xhr, filename)
                }
            }
        }
        xhr.responseType = "arraybuffer"
        xhr.open("GET", address, true)
        xhr.send()
    },
#4

上面调用的是下面的，1.6.2是正常的，1.7获取到的字符串长度有问题，是个空串

#5

加上这两句看看打印啥
console.log("-----xhr.readyState----" +xhr.readyState);
console.log("-----xhr.status----" +xhr.status);

#6

这加上这句看看
console.log(’-------xhr.response length’,xhr.response.byteLength);

#7

2017-11-29T06:37:38.309Z - normal: Simulator: JS: -----xhr.readyState----4
2017-11-29T06:37:38.310Z - normal: Simulator: JS: -----xhr.status----200
2017-11-29T06:37:38.310Z - normal: Simulator: JS: -------xhr.response length 316
2017-11-29T06:37:38.310Z - normal: Simulator: JS: responseText xxxxxxxxxxxxxxxxxx {} string
2017-11-29T06:37:38.310Z - normal: Simulator: ERROR: SyntaxError: JSON Parse error: Unexpected EOF, location: assets/Script/GameHall/GameHall.js:90:37

#8

返回的是json字符串的话，不用设置xhr.responseType = "arraybuffer"吧？
请求的是图片的话设置的这个，普通json字符串都没置这个。
我也用的1.7没有问题