Blueimp FileUpload：返回responseText时出现fileuploadsubmit错误

我正在使用Blueimp FileUpload插件，当我尝试在上传图像后捕获响应时，一切都很好：

var fi = $('#fileupload'); //file input var process_url = '/backoffice/listings/upload-images '; var progressBar = $('
').addClass('progress').append($('
').addClass('progress-bar')); //progress bar var uploadButton = $('').addClass('button btn-blue upload').text('Upload'); //upload button uploadButton.on('click', function () { var $this = $(this), data = $this.data(); data.submit().always(function () { $this.parent().find('.progress').show(); $this.parent().find('.remove').remove(); $this.remove(); }); }); fi.fileupload({ url: process_url, dataType: 'json', autoUpload: false, acceptFileTypes: /(\.|\/)(gif|jpe?g|png|mp4|mp3)$/i, maxFileSize: 1048576, //1MB disableImageResize: /Android(?!.*Chrome)|Opera/ .test(window.navigator.userAgent), previewMaxWidth: 50, previewMaxHeight: 50, previewCrop: true, dropZone: $('#dropzone') }); //other functions work fine //Code which needs to comes after submit fi.on('fileuploadsubmit', function (e, data) { console.log('submit'); console.log(data); }); }); 

在开发者控制台中快速浏览一下，确实有一个响应文本：

但是当我试图获取响应时： console.log(data.jqXHR.responseText); ，我得到一个Uncaught TypeError: Cannot read property 'responseText' of undefined错误的Uncaught TypeError: Cannot read property 'responseText' of undefined 。

哪里可能出错？