jQuery文件上传：无法在Safari 11中上传文件

_handleFileTreeEntry: function (entry,path) {
        var that = this,dfd = $.Deferred(),errorHandler = function (E) {
                if (e && !e.entry) {
                    e.entry = entry;
                }
                // Since $.when returns immediately if one
                // Deferred is rejected,we use resolve instead.
                // This allows valid files and invalid items
                // to be returned together in one set:
                dfd.resolve([e]);
            },successHandler = function (entries) {
                that._handleFileTreeEntries(
                    entries,path + entry.name + '/'
                ).done(function (files) {
                    dfd.resolve(files);
                }).fail(errorHandler);
            },readEntries = function () {
                dirReader.readEntries(function (results) {
                    if (!results.length) {
                        successHandler(entries);
                    } else {
                        entries = entries.concat(results);
                        readEntries();
                    }
                },errorHandler);
            },dirReader,entries = [];
        path = path || '';
        if (entry.isFilE) {
            if (entry._filE) {
                // Workaround for Chrome bug #149735
                entry._file.relativePath = path;
                dfd.resolve(entry._filE);
            } else {
                entry.file(function (filE) {  // <=== here
                    file.relativePath = path;
                    dfd.resolve(filE);
                },errorHandler);
            }
        } else if (entry.isDirectory) {
            dirReader = entry.createReader();
            readEntries();
        } else {
            // Return an empy list for file system items
            // other than files or directories:
            dfd.resolve([]);
        }
        return dfd.promise();

}

在此函数中,当代码进入条件时

entry.file(function (filE) {
                file.relativePath = path;
                dfd.resolve(filE);
            },errorHandler);

Safari返回errorHandler进行文件函数回调.函数api参考这里：https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry/file.

它一定是Safari 11的bug.很快我就会报告Apple的错误.在jQuery.fileupload.js中,我想更好的固定方法是使用Safari 11检测UserAgent.但我认为Apple应该解决这个问题.