h5 plus.gallery.pick选择图片后在iOS上预览显示空白

这个问题有人碰到过嘛，下面是代码，如果有大神知道原因麻烦告知，谢谢

//拍照上传  
                    getImage() {  
                        var that = this;  
                        var c = plus.camera.getCamera();  
                        c.captureImage(function(e) {  
                            plus.io.resolveLocalFileSystemURL(e, function(entry) {  
                                // var imgSrc = entry.toLocalURL() + "?version=" + new Date().getTime(); //拿到图片路径    
                                var imgSrc = entry.toLocalURL(); //拿到图片路径    
                                that.compressImage(imgSrc, entry.name);  
                            }, function(e) {  
                                console.log("读取拍照文件错误：" + e.message);  
                            });  
                        }, function(s) {  
                            console.log("error" + s.message);  
                        }, {  
                            filename: "_doc/camera/"  
                        })  
                    },  

                    //从相册中选择图片  
                    galleryImgsMaximum() {  
                        var that = this;  
                        // 从相册中选择图片  
                        // console.log('从相册中选择多张图片(限定最多选择9张)：');  
                        plus.gallery.pick(function(e) {  
                                for (var i in e.files) {  
                                    var fileSrc = e.files[i];  
                                    var name = fileSrc.substr(fileSrc.lastIndexOf('/') + 1)  
                                    that.compressImage(fileSrc, name);  
                                }  
                            },  
                            function(e) {  
                                console.log('取消选择图片');  
                            }, {  
                                filter: 'image',  
                                multiple: true,  
                                maximum: that.limit - that.cur_num,  
                                system: false,  
                                onmaxed: function() {  
                                    plus.nativeUI.alert('最多只能选择9张图片');  
                                }  
                            }); // 最多选择9张图片  
                    },  

                    //产生随机数  
                    RndNum(n) {  
                        var rnd = "";  
                        for (var i = 0; i < n; i++)  
                            rnd += Math.floor(Math.random() * 10);  
                        return rnd;  
                    },  

                    //压缩图片  
                    compressImage(url, filename) {  
                        console.log(filename);  
                        var that = this;  
                        // var name = "_doc/upload/" + that.RndNum(5) + "_" + filename; //_doc/upload/1467602809090.jpg  
                        var name = "_doc/zip_" + that.RndNum(5) + "_" + filename; //_doc/upload/1467602809090.jpg  
                        plus.zip.compressImage({  
                                src: url, //src: (String 类型 )压缩转换原始图片的路径  
                                dst: name, //压缩转换目标图片的路径  
                                quality: 20, //quality: (Number 类型 )压缩图片的质量.取值范围为1-100  
                                overwrite: true //overwrite: (Boolean 类型 )覆盖生成新文件  
                            },  
                            function(event) {  
                                // console.log(event.target);  
                                // var path = name; //压缩转换目标图片的路径  
                                //event.target获取压缩转换后的图片url路  
                                //filename图片名称  
                                that.setFile(event.target);  
                                if (that.cur_num < that.limit) {  
                                    that.imgList.push(event.target);  
                                    //console.log(JSON.stringify(that.imgList));  
                                    that.cur_num++;  
                                } else {  
                                    return;  
                                };  
                                that.changeShowAddBtn();  
                            },  
                            function(error) {  
                                plus.nativeUI.toast("压缩图片失败，请稍候再试");  
                            });  
                    },