qq玩一玩，加载Base64图片出错

Creator 2.x
#1

官方帮忙看下，谢谢！

var imgElement = new Image(imgWidth, imgHeight);
imgElement.src = base64_str;

通过跟踪
HTMLImageElement
在执行下面代码时，会报错
prop._loadedImage = function (val) {
this._src = val;

    var self = this;
    BK.Image.loadImages({
        'file': [{'path': val}],
        'success': function (retObj) {
            var data = retObj[0];
            if (data && data.errcode === 0) {
                var bkImage = data.image;
                if (bkImage) {
                    self.width = bkImage.width;
                    self.height = bkImage.height;
                }
                self.bkImage = bkImage;
                self.emit('load');
            }
            else {
                self.emit('error', "Loading of images failed:" + data.path + " code:" + data.errcode + " msg:" + data.errmsg);
            }
        },
        'fail': function (obj) {
            self.emit('error', "Loading of images failed:" + data.path + " code:" + data.errcode + " msg:" + data.errmsg);
        }
    });

};

报错日志如下(GameSandBox://ImageCache7dwe/028f59bc4bd9010f19da00245e5b16c84328c823是由baser64数据生成的图片)：
level:1,code:-1,info1:BK.Image.bkLoadImage! load png/jpg image, path = /storage/emulated/0/Tencent/MobileQQ/.apollo/game/5579/sandbox/ImageCache7dwe/028f59bc4bd9010f19da00245e5b16c84328c823, w = 0, h = 0,info2:,info3:

level:1,code:1,info1:BK.Image._bkImageTaskFunc! loadImage failed:GameSandBox://ImageCache7dwe/028f59bc4bd9010f19da00245e5b16c84328c823,info2:,info3: