diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/ResourceManifest.cs b/src/Orchard.Web/Modules/Orchard.jQuery/ResourceManifest.cs
index 3b5289c92..ad173b16f 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/ResourceManifest.cs
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/ResourceManifest.cs
@@ -80,8 +80,8 @@ namespace Orchard.jQuery {
             manifest.DefineStyle("jQueryDateTimeEditor").SetUrl("jquery-datetime-editor.css").SetDependencies("DateTimeEditor");
 
             // jQuery File Upload
-            manifest.DefineScript("jQueryIFrameTransport").SetUrl("jquery.iframe-transport.min.js", "jquery.iframe-transport.js").SetVersion("1.6.1").SetDependencies("jQuery");
-            manifest.DefineScript("jQueryFileUpload").SetUrl("jquery.fileupload.min.js", "jquery.fileupload.js").SetVersion("1.6.1").SetDependencies("jQueryIFrameTransport").SetDependencies("jQueryUI_Widget");
+            manifest.DefineScript("jQueryIFrameTransport").SetUrl("jquery.iframe-transport.min.js", "jquery.iframe-transport.js").SetVersion("1.8.2").SetDependencies("jQuery");
+            manifest.DefineScript("jQueryFileUpload").SetUrl("jquery.fileupload.min.js", "jquery.fileupload.js").SetVersion("5.41.0").SetDependencies("jQueryIFrameTransport").SetDependencies("jQueryUI_Widget");
 
             // jquer Color Box
             manifest.DefineScript("jQueryColorBox").SetUrl("jquery.colorbox.min.js", "jquery.colorbox.js").SetVersion("1.4.10").SetDependencies("jQuery");
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.js b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.js
index 78bffafec..5461765e1 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.js
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.js
@@ -1,5 +1,5 @@
 /*
- * jQuery File Upload Plugin 5.28.5
+ * jQuery File Upload Plugin 5.41.0
  * https://github.com/blueimp/jQuery-File-Upload
  *
  * Copyright 2010, Sebastian Tschan
@@ -9,8 +9,8 @@
  * http://www.opensource.org/licenses/MIT
  */
 
-/*jslint nomen: true, unparam: true, regexp: true */
-/*global define, window, document, File, Blob, FormData, location */
+/* jshint nomen:false */
+/* global define, window, document, location, Blob, FormData */
 
 (function (factory) {
     'use strict';
@@ -27,12 +27,30 @@
 }(function ($) {
     'use strict';
 
+    // Detect file input support, based on
+    // http://viljamis.com/blog/2012/file-upload-support-on-mobile/
+    $.support.fileInput = !(new RegExp(
+        // Handle devices which give false positives for the feature detection:
+        '(Android (1\\.[0156]|2\\.[01]))' +
+            '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' +
+            '|(w(eb)?OSBrowser)|(webOS)' +
+            '|(Kindle/(1\\.0|2\\.[05]|3\\.0))'
+    ).test(window.navigator.userAgent) ||
+        // Feature detection for all other devices:
+        $('<input type="file">').prop('disabled'));
+
     // The FileReader API is not actually used, but works as feature detection,
-    // as e.g. Safari supports XHR file uploads via the FormData API,
-    // but not non-multipart XHR file uploads:
-    $.support.xhrFileUpload = !!(window.XMLHttpRequestUpload && window.FileReader);
+    // as some Safari versions (5?) support XHR file uploads via the FormData API,
+    // but not non-multipart XHR file uploads.
+    // window.XMLHttpRequestUpload is not available on IE10, so we check for
+    // window.ProgressEvent instead to detect XHR2 file upload capability:
+    $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader);
     $.support.xhrFormDataFileUpload = !!window.FormData;
 
+    // Detect support for Blob slicing (required for chunked uploads):
+    $.support.blobSlice = window.Blob && (Blob.prototype.slice ||
+        Blob.prototype.webkitSlice || Blob.prototype.mozSlice);
+
     // The fileupload widget listens for change events on file input fields defined
     // via fileInput setting and paste or drop events of the given dropZone.
     // In addition to the default jQuery Widget methods, the fileupload widget
@@ -72,6 +90,14 @@
             // To limit the number of files uploaded with one XHR request,
             // set the following option to an integer greater than 0:
             limitMultiFileUploads: undefined,
+            // The following option limits the number of files uploaded with one
+            // XHR request to keep the request size under or equal to the defined
+            // limit in bytes:
+            limitMultiFileUploadSize: undefined,
+            // Multipart file uploads add a number of bytes to each uploaded file,
+            // therefore the following option adds an overhead for each file used
+            // in the limitMultiFileUploadSize configuration:
+            limitMultiFileUploadSizeOverhead: 512,
             // Set the following option to true to issue all file upload requests
             // in a sequential order:
             sequentialUploads: false,
@@ -115,6 +141,23 @@
             // By default, uploads are started automatically when adding files:
             autoUpload: true,
 
+            // Error and info messages:
+            messages: {
+                uploadedBytes: 'Uploaded bytes exceed file size'
+            },
+
+            // Translation function, gets the message key to be translated
+            // and an object with context specific data as arguments:
+            i18n: function (message, context) {
+                message = this.messages[message] || message.toString();
+                if (context) {
+                    $.each(context, function (key, value) {
+                        message = message.replace('{' + key + '}', value);
+                    });
+                }
+                return message;
+            },
+
             // Additional form data to be sent along with the file uploads can be set
             // using this option, which accepts an array of objects with name and
             // value properties, a function returning such an array, a FormData
@@ -127,21 +170,28 @@
             // The add callback is invoked as soon as files are added to the fileupload
             // widget (via file input selection, drag & drop, paste or add API call).
             // If the singleFileUploads option is enabled, this callback will be
-            // called once for each file in the selection for XHR file uplaods, else
+            // called once for each file in the selection for XHR file uploads, else
             // once for each file selection.
+            //
             // The upload starts when the submit method is invoked on the data parameter.
             // The data object contains a files property holding the added files
-            // and allows to override plugin options as well as define ajax settings.
+            // and allows you to override plugin options as well as define ajax settings.
+            //
             // Listeners for this callback can also be bound the following way:
             // .bind('fileuploadadd', func);
+            //
             // data.submit() returns a Promise object and allows to attach additional
             // handlers using jQuery's Deferred callbacks:
             // data.submit().done(func).fail(func).always(func);
             add: function (e, data) {
+                if (e.isDefaultPrevented()) {
+                    return false;
+                }
                 if (data.autoUpload || (data.autoUpload !== false &&
-                        ($(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload')).options.autoUpload)) {
-                    data.submit();
+                        $(this).fileupload('option', 'autoUpload'))) {
+                    data.process().done(function () {
+                        data.submit();
+                    });
                 }
             },
 
@@ -205,8 +255,9 @@
             cache: false
         },
 
-        // A list of options that require a refresh after assigning a new value:
-        _refreshOptionsList: [
+        // A list of options that require reinitializing event listeners and/or
+        // special initialization code:
+        _specialOptions: [
             'fileInput',
             'dropZone',
             'pasteZone',
@@ -214,6 +265,11 @@
             'forceIframeTransport'
         ],
 
+        _blobSlice: $.support.blobSlice && function () {
+            var slice = this.slice || this.webkitSlice || this.mozSlice;
+            return slice.apply(this, arguments);
+        },
+
         _BitrateTimer: function () {
             this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime());
             this.loaded = 0;
@@ -237,7 +293,7 @@
 
         _getFormData: function (options) {
             var formData;
-            if (typeof options.formData === 'function') {
+            if ($.type(options.formData) === 'function') {
                 return options.formData(options.form);
             }
             if ($.isArray(options.formData)) {
@@ -246,7 +302,7 @@
             if ($.type(options.formData) === 'object') {
                 formData = [];
                 $.each(options.formData, function (name, value) {
-                    formData.push({name: name, value: value});
+                    formData.push({ name: name, value: value });
                 });
                 return formData;
             }
@@ -317,10 +373,18 @@
                 // Trigger a custom progress event with a total data property set
                 // to the file size(s) of the current upload and a loaded data
                 // property calculated accordingly:
-                this._trigger('progress', e, data);
+                this._trigger(
+                    'progress',
+                    $.Event('progress', { delegatedEvent: e }),
+                    data
+                );
                 // Trigger a global progress event for all current file uploads,
                 // including ajax calls queued for sequential file uploads:
-                this._trigger('progressall', e, this._progress);
+                this._trigger(
+                    'progressall',
+                    $.Event('progressall', { delegatedEvent: e }),
+                    this._progress
+                );
             }
         },
 
@@ -344,20 +408,29 @@
             }
         },
 
+        _isInstanceOf: function (type, obj) {
+            // Cross-frame instanceof check
+            return Object.prototype.toString.call(obj) === '[object ' + type + ']';
+        },
+
         _initXHRData: function (options) {
-            var formData,
+            var that = this,
+                formData,
                 file = options.files[0],
                 // Ignore non-multipart setting if not supported:
                 multipart = options.multipart || !$.support.xhrFileUpload,
-                paramName = options.paramName[0];
-            options.headers = options.headers || {};
+                paramName = $.type(options.paramName) === 'array' ?
+                    options.paramName[0] : options.paramName;
+            options.headers = $.extend({}, options.headers);
             if (options.contentRange) {
                 options.headers['Content-Range'] = options.contentRange;
             }
-            if (!multipart) {
+            if (!multipart || options.blob || !this._isInstanceOf('File', file)) {
                 options.headers['Content-Disposition'] = 'attachment; filename="' +
                     encodeURI(file.name) + '"';
-                options.contentType = file.type;
+            }
+            if (!multipart) {
+                options.contentType = file.type || 'application/octet-stream';
                 options.data = options.blob || file;
             } else if ($.support.xhrFormDataFileUpload) {
                 if (options.postMessage) {
@@ -374,13 +447,14 @@
                     } else {
                         $.each(options.files, function (index, file) {
                             formData.push({
-                                name: options.paramName[index] || paramName,
+                                name: ($.type(options.paramName) === 'array' &&
+                                    options.paramName[index]) || paramName,
                                 value: file
                             });
                         });
                     }
                 } else {
-                    if (options.formData instanceof FormData) {
+                    if (that._isInstanceOf('FormData', options.formData)) {
                         formData = options.formData;
                     } else {
                         formData = new FormData();
@@ -389,21 +463,18 @@
                         });
                     }
                     if (options.blob) {
-                        options.headers['Content-Disposition'] = 'attachment; filename="' +
-                            encodeURI(file.name) + '"';
                         formData.append(paramName, options.blob, file.name);
                     } else {
                         $.each(options.files, function (index, file) {
-                            // Files are also Blob instances, but some browsers
-                            // (Firefox 3.6) support the File API but not Blobs.
                             // This check allows the tests to run with
                             // dummy objects:
-                            if ((window.Blob && Object.prototype.toString.call(file) === '[object Blob]') ||
-                                    (window.File && Object.prototype.toString.call(file) === '[object File]')) {
+                            if (that._isInstanceOf('File', file) ||
+                                    that._isInstanceOf('Blob', file)) {
                                 formData.append(
-                                    options.paramName[index] || paramName,
+                                    ($.type(options.paramName) === 'array' &&
+                                        options.paramName[index]) || paramName,
                                     file,
-                                    file.name
+                                    file.uploadName || file.name
                                 );
                             }
                         });
@@ -416,13 +487,13 @@
         },
 
         _initIframeSettings: function (options) {
+            var targetHost = $('<a></a>').prop('href', options.url).prop('host');
             // Setting the dataType to iframe enables the iframe transport:
             options.dataType = 'iframe ' + (options.dataType || '');
             // The iframe transport accepts a serialized array as form data:
             options.formData = this._getFormData(options);
             // Add redirect url to form data on cross-domain uploads:
-            if (options.redirect && $('<a></a>').prop('href', options.url)
-                    .prop('host') !== location.host) {
+            if (options.redirect && targetHost && targetHost !== location.host) {
                 options.formData.push({
                     name: options.redirectParamName || 'redirect',
                     value: options.redirect
@@ -444,7 +515,7 @@
                     options.dataType = 'postmessage ' + (options.dataType || '');
                 }
             } else {
-                this._initIframeSettings(options, 'iframe');
+                this._initIframeSettings(options);
             }
         },
 
@@ -487,8 +558,10 @@
                 options.url = options.form.prop('action') || location.href;
             }
             // The HTTP request method must be "POST" or "PUT":
-            options.type = (options.type || options.form.prop('method') || '')
-                .toUpperCase();
+            options.type = (options.type ||
+                ($.type(options.form.prop('method')) === 'string' &&
+                    options.form.prop('method')) || ''
+                ).toUpperCase();
             if (options.type !== 'POST' && options.type !== 'PUT' &&
                     options.type !== 'PATCH') {
                 options.type = 'POST';
@@ -544,14 +617,35 @@
             return this._enhancePromise(promise);
         },
 
-        // Adds convenience methods to the callback arguments:
+        // Adds convenience methods to the data callback argument:
         _addConvenienceMethods: function (e, data) {
-            var that = this;
+            var that = this,
+                getPromise = function (args) {
+                    return $.Deferred().resolveWith(that, args).promise();
+                };
+            data.process = function (resolveFunc, rejectFunc) {
+                if (resolveFunc || rejectFunc) {
+                    data._processQueue = this._processQueue =
+                        (this._processQueue || getPromise([this])).pipe(
+                            function () {
+                                if (data.errorThrown) {
+                                    return $.Deferred()
+                                        .rejectWith(that, [data]).promise();
+                                }
+                                return getPromise(arguments);
+                            }
+                        ).pipe(resolveFunc, rejectFunc);
+                }
+                return this._processQueue || getPromise([this]);
+            };
             data.submit = function () {
                 if (this.state() !== 'pending') {
                     data.jqXHR = this.jqXHR =
-                        (that._trigger('submit', e, this) !== false) &&
-                        that._onSend(e, this);
+                        (that._trigger(
+                            'submit',
+                            $.Event('submit', { delegatedEvent: e }),
+                            this
+                        ) !== false) && that._onSend(e, this);
                 }
                 return this.jqXHR || that._getXHRPromise();
             };
@@ -559,12 +653,21 @@
                 if (this.jqXHR) {
                     return this.jqXHR.abort();
                 }
-                return that._getXHRPromise();
+                this.errorThrown = 'abort';
+                that._trigger('fail', null, this);
+                return that._getXHRPromise(false);
             };
             data.state = function () {
                 if (this.jqXHR) {
                     return that._getDeferredState(this.jqXHR);
                 }
+                if (this._processQueue) {
+                    return that._getDeferredState(this._processQueue);
+                }
+            };
+            data.processing = function () {
+                return !this.jqXHR && this._processQueue && that
+                    ._getDeferredState(this._processQueue) === 'pending';
             };
             data.progress = function () {
                 return this._progress;
@@ -590,12 +693,13 @@
         // should be uploaded in chunks, but does not invoke any
         // upload requests:
         _chunkedUpload: function (options, testOnly) {
+            options.uploadedBytes = options.uploadedBytes || 0;
             var that = this,
                 file = options.files[0],
                 fs = file.size,
-                ub = options.uploadedBytes = options.uploadedBytes || 0,
+                ub = options.uploadedBytes,
                 mcs = options.maxChunkSize || fs,
-                slice = file.slice || file.webkitSlice || file.mozSlice,
+                slice = this._blobSlice,
                 dfd = $.Deferred(),
                 promise = dfd.promise(),
                 jqXHR,
@@ -608,7 +712,7 @@
                 return true;
             }
             if (ub >= fs) {
-                file.error = 'Uploaded bytes exceed file size';
+                file.error = options.i18n('uploadedBytes');
                 return this._getXHRPromise(
                     false,
                     options.context,
@@ -644,7 +748,7 @@
                         // Create a progress event if no final progress event
                         // with loaded equaling total has been triggered
                         // for this chunk:
-                        if (o._progress.loaded === currentLoaded) {
+                        if (currentLoaded + o.chunkSize - o._progress.loaded) {
                             that._onProgress($.Event('progress', {
                                 lengthComputable: true,
                                 loaded: ub - o.uploadedBytes,
@@ -767,7 +871,11 @@
                     // Set timer for bitrate progress calculation:
                     options._bitrateTimer = new that._BitrateTimer();
                     jqXHR = jqXHR || (
-                        ((aborted || that._trigger('send', e, options) === false) &&
+                        ((aborted || that._trigger(
+                            'send',
+                            $.Event('send', { delegatedEvent: e }),
+                            options
+                        ) === false) &&
                         that._getXHRPromise(false, options.context, aborted)) ||
                         that._chunkedUpload(options) || $.ajax(options)
                     ).done(function (result, textStatus, jqXHR) {
@@ -813,7 +921,8 @@
                     this._slots.push(slot);
                     pipe = slot.pipe(send);
                 } else {
-                    pipe = (this._sequence = this._sequence.pipe(send, send));
+                    this._sequence = this._sequence.pipe(send, send);
+                    pipe = this._sequence;
                 }
                 // Return the piped Promise object, enhanced with an abort method,
                 // which is delegated to the jqXHR object of the current upload,
@@ -837,46 +946,80 @@
             var that = this,
                 result = true,
                 options = $.extend({}, this.options, data),
+                files = data.files,
+                filesLength = files.length,
                 limit = options.limitMultiFileUploads,
+                limitSize = options.limitMultiFileUploadSize,
+                overhead = options.limitMultiFileUploadSizeOverhead,
+                batchSize = 0,
                 paramName = this._getParamName(options),
                 paramNameSet,
                 paramNameSlice,
                 fileSet,
-                i;
-            if (!(options.singleFileUploads || limit) ||
+                i,
+                j = 0;
+            if (limitSize && (!filesLength || files[0].size === undefined)) {
+                limitSize = undefined;
+            }
+            if (!(options.singleFileUploads || limit || limitSize) ||
                     !this._isXHRUpload(options)) {
-                fileSet = [data.files];
+                fileSet = [files];
                 paramNameSet = [paramName];
-            } else if (!options.singleFileUploads && limit) {
+            } else if (!(options.singleFileUploads || limitSize) && limit) {
                 fileSet = [];
                 paramNameSet = [];
-                for (i = 0; i < data.files.length; i += limit) {
-                    fileSet.push(data.files.slice(i, i + limit));
+                for (i = 0; i < filesLength; i += limit) {
+                    fileSet.push(files.slice(i, i + limit));
                     paramNameSlice = paramName.slice(i, i + limit);
                     if (!paramNameSlice.length) {
                         paramNameSlice = paramName;
                     }
                     paramNameSet.push(paramNameSlice);
                 }
+            } else if (!options.singleFileUploads && limitSize) {
+                fileSet = [];
+                paramNameSet = [];
+                for (i = 0; i < filesLength; i = i + 1) {
+                    batchSize += files[i].size + overhead;
+                    if (i + 1 === filesLength ||
+                            ((batchSize + files[i + 1].size + overhead) > limitSize) ||
+                            (limit && i + 1 - j >= limit)) {
+                        fileSet.push(files.slice(j, i + 1));
+                        paramNameSlice = paramName.slice(j, i + 1);
+                        if (!paramNameSlice.length) {
+                            paramNameSlice = paramName;
+                        }
+                        paramNameSet.push(paramNameSlice);
+                        j = i + 1;
+                        batchSize = 0;
+                    }
+                }
             } else {
                 paramNameSet = paramName;
             }
-            data.originalFiles = data.files;
-            $.each(fileSet || data.files, function (index, element) {
+            data.originalFiles = files;
+            $.each(fileSet || files, function (index, element) {
                 var newData = $.extend({}, data);
                 newData.files = fileSet ? element : [element];
                 newData.paramName = paramNameSet[index];
                 that._initResponseObject(newData);
                 that._initProgressObject(newData);
                 that._addConvenienceMethods(e, newData);
-                result = that._trigger('add', e, newData);
+                result = that._trigger(
+                    'add',
+                    $.Event('add', { delegatedEvent: e }),
+                    newData
+                );
                 return result;
             });
             return result;
         },
 
-        _replaceFileInput: function (input) {
-            var inputClone = input.clone(true);
+        _replaceFileInput: function (data) {
+            var input = data.fileInput,
+                inputClone = input.clone(true);
+            // Add a reference for the new cloned file input to the data argument:
+            data.fileInputClone = inputClone;
             $('<form></form>').append(inputClone)[0].reset();
             // Detaching allows to insert the fileInput on another form
             // without loosing the file input value:
@@ -912,7 +1055,25 @@
                     // to be returned together in one set:
                     dfd.resolve([e]);
                 },
-                dirReader;
+                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) {
@@ -927,14 +1088,7 @@
                 }
             } else if (entry.isDirectory) {
                 dirReader = entry.createReader();
-                dirReader.readEntries(function (entries) {
-                    that._handleFileTreeEntries(
-                        entries,
-                        path + entry.name + '/'
-                    ).done(function (files) {
-                        dfd.resolve(files);
-                    }).fail(errorHandler);
-                }, errorHandler);
+                readEntries();
             } else {
                 // Return an empy list for file system items
                 // other than files or directories:
@@ -1001,7 +1155,7 @@
                 // If the files property is not available, the browser does not
                 // support the File API and we add a pseudo File object with
                 // the input value as name with path information removed:
-                files = [{name: value.replace(/^.*\\/, '')}];
+                files = [{ name: value.replace(/^.*\\/, '') }];
             } else if (files[0].name === undefined && files[0].fileName) {
                 // File normalization for Safari 4 and Firefox 3:
                 $.each(files, function (index, file) {
@@ -1036,53 +1190,69 @@
             this._getFileInputFiles(data.fileInput).always(function (files) {
                 data.files = files;
                 if (that.options.replaceFileInput) {
-                    that._replaceFileInput(data.fileInput);
+                    that._replaceFileInput(data);
                 }
-                if (that._trigger('change', e, data) !== false) {
+                if (that._trigger(
+                        'change',
+                        $.Event('change', { delegatedEvent: e }),
+                        data
+                    ) !== false) {
                     that._onAdd(e, data);
                 }
             });
         },
 
         _onPaste: function (e) {
-            var cbd = e.originalEvent.clipboardData,
-                items = (cbd && cbd.items) || [],
-                data = {files: []};
-            $.each(items, function (index, item) {
-                var file = item.getAsFile && item.getAsFile();
-                if (file) {
-                    data.files.push(file);
+            var items = e.originalEvent && e.originalEvent.clipboardData &&
+                    e.originalEvent.clipboardData.items,
+                data = { files: [] };
+            if (items && items.length) {
+                $.each(items, function (index, item) {
+                    var file = item.getAsFile && item.getAsFile();
+                    if (file) {
+                        data.files.push(file);
+                    }
+                });
+                if (this._trigger(
+                        'paste',
+                        $.Event('paste', { delegatedEvent: e }),
+                        data
+                    ) !== false) {
+                    this._onAdd(e, data);
                 }
-            });
-            if (this._trigger('paste', e, data) === false ||
-                    this._onAdd(e, data) === false) {
-                return false;
             }
         },
 
         _onDrop: function (e) {
+            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
             var that = this,
-                dataTransfer = e.dataTransfer = e.originalEvent.dataTransfer,
+                dataTransfer = e.dataTransfer,
                 data = {};
             if (dataTransfer && dataTransfer.files && dataTransfer.files.length) {
                 e.preventDefault();
+                this._getDroppedFiles(dataTransfer).always(function (files) {
+                    data.files = files;
+                    if (that._trigger(
+                            'drop',
+                            $.Event('drop', { delegatedEvent: e }),
+                            data
+                        ) !== false) {
+                        that._onAdd(e, data);
+                    }
+                });
             }
-            this._getDroppedFiles(dataTransfer).always(function (files) {
-                data.files = files;
-                if (that._trigger('drop', e, data) !== false) {
-                    that._onAdd(e, data);
-                }
-            });
         },
 
         _onDragOver: function (e) {
-            var dataTransfer = e.dataTransfer = e.originalEvent.dataTransfer;
-            if (this._trigger('dragover', e) === false) {
-                return false;
-            }
-            if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1) {
-                dataTransfer.dropEffect = 'copy';
+            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
+            var dataTransfer = e.dataTransfer;
+            if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1 &&
+                    this._trigger(
+                        'dragover',
+                        $.Event('dragover', { delegatedEvent: e })
+                    ) !== false) {
                 e.preventDefault();
+                dataTransfer.dropEffect = 'copy';
             }
         },
 
@@ -1096,9 +1266,11 @@
                     paste: this._onPaste
                 });
             }
-            this._on(this.options.fileInput, {
-                change: this._onChange
-            });
+            if ($.support.fileInput) {
+                this._on(this.options.fileInput, {
+                    change: this._onChange
+                });
+            }
         },
 
         _destroyEventHandlers: function () {
@@ -1108,12 +1280,12 @@
         },
 
         _setOption: function (key, value) {
-            var refresh = $.inArray(key, this._refreshOptionsList) !== -1;
-            if (refresh) {
+            var reinit = $.inArray(key, this._specialOptions) !== -1;
+            if (reinit) {
                 this._destroyEventHandlers();
             }
             this._super(key, value);
-            if (refresh) {
+            if (reinit) {
                 this._initSpecialOptions();
                 this._initEventHandlers();
             }
@@ -1135,10 +1307,41 @@
             }
         },
 
-        _create: function () {
-            var options = this.options;
+        _getRegExp: function (str) {
+            var parts = str.split('/'),
+                modifiers = parts.pop();
+            parts.shift();
+            return new RegExp(parts.join('/'), modifiers);
+        },
+
+        _isRegExpOption: function (key, value) {
+            return key !== 'url' && $.type(value) === 'string' &&
+                /^\/.*\/[igm]{0,3}$/.test(value);
+        },
+
+        _initDataAttributes: function () {
+            var that = this,
+                options = this.options,
+                clone = $(this.element[0].cloneNode(false));
             // Initialize options set via HTML5 data-attributes:
-            $.extend(options, $(this.element[0].cloneNode(false)).data());
+            $.each(
+                clone.data(),
+                function (key, value) {
+                    var dataAttributeName = 'data-' +
+                        // Convert camelCase to hyphen-ated key:
+                        key.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
+                    if (clone.attr(dataAttributeName)) {
+                        if (that._isRegExpOption(key, value)) {
+                            value = that._getRegExp(value);
+                        }
+                        options[key] = value;
+                    }
+                }
+            );
+        },
+
+        _create: function () {
+            this._initDataAttributes();
             this._initSpecialOptions();
             this._slots = [];
             this._sequence = this._getXHRPromise(true);
@@ -1207,8 +1410,13 @@
                             if (aborted) {
                                 return;
                             }
+                            if (!files.length) {
+                                dfd.reject();
+                                return;
+                            }
                             data.files = files;
-                            jqXHR = that._onSend(null, data).then(
+                            jqXHR = that._onSend(null, data);
+                            jqXHR.then(
                                 function (result, textStatus, jqXHR) {
                                     dfd.resolve(result, textStatus, jqXHR);
                                 },
@@ -1230,4 +1438,4 @@
 
     });
 
-}));
+}));
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.min.js b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.min.js
index bdf43cc44..28e25e907 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.min.js
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.fileupload.min.js
@@ -1,2 +1 @@
-(function(n){"use strict";typeof define=="function"&&define.amd?define(["jquery","jquery.ui.widget"],n):n(window.jQuery)})(function(n){"use strict";n.support.xhrFileUpload=!!(window.XMLHttpRequestUpload&&window.FileReader),n.support.xhrFormDataFileUpload=!!window.FormData,n.widget("blueimp.fileupload",{options:{dropZone:n(document),pasteZone:n(document),fileInput:undefined,replaceFileInput:!0,paramName:undefined,singleFileUploads:!0,limitMultiFileUploads:undefined,sequentialUploads:!1,limitConcurrentUploads:undefined,forceIframeTransport:!1,redirect:undefined,redirectParamName:undefined,postMessage:undefined,multipart:!0,maxChunkSize:undefined,uploadedBytes:undefined,recalculateProgress:!0,progressInterval:100,bitrateInterval:500,autoUpload:!0,formData:function(n){return n.serializeArray()},add:function(t,i){(i.autoUpload||i.autoUpload!==!1&&(n(this).data("blueimp-fileupload")||n(this).data("fileupload")).options.autoUpload)&&i.submit()},processData:!1,contentType:!1,cache:!1},_refreshOptionsList:["fileInput","dropZone","pasteZone","multipart","forceIframeTransport"],_BitrateTimer:function(){this.timestamp=Date.now?Date.now():(new Date).getTime(),this.loaded=0,this.bitrate=0,this.getBitrate=function(n,t,i){var r=n-this.timestamp;return(!this.bitrate||!i||r>i)&&(this.bitrate=(t-this.loaded)*(1e3/r)*8,this.loaded=t,this.timestamp=n),this.bitrate}},_isXHRUpload:function(t){return!t.forceIframeTransport&&(!t.multipart&&n.support.xhrFileUpload||n.support.xhrFormDataFileUpload)},_getFormData:function(t){var i;return typeof t.formData=="function"?t.formData(t.form):n.isArray(t.formData)?t.formData:n.type(t.formData)==="object"?(i=[],n.each(t.formData,function(n,t){i.push({name:n,value:t})}),i):[]},_getTotal:function(t){var i=0;return n.each(t,function(n,t){i+=t.size||1}),i},_initProgressObject:function(t){var i={loaded:0,total:0,bitrate:0};t._progress?n.extend(t._progress,i):t._progress=i},_initResponseObject:function(n){var t;if(n._response)for(t in n._response)n._response.hasOwnProperty(t)&&delete n._response[t];else n._response={}},_onProgress:function(n,t){if(n.lengthComputable){var i=Date.now?Date.now():(new Date).getTime(),r;if(t._time&&t.progressInterval&&i-t._time<t.progressInterval&&n.loaded!==n.total)return;t._time=i,r=Math.floor(n.loaded/n.total*(t.chunkSize||t._progress.total))+(t.uploadedBytes||0),this._progress.loaded+=r-t._progress.loaded,this._progress.bitrate=this._bitrateTimer.getBitrate(i,this._progress.loaded,t.bitrateInterval),t._progress.loaded=t.loaded=r,t._progress.bitrate=t.bitrate=t._bitrateTimer.getBitrate(i,r,t.bitrateInterval),this._trigger("progress",n,t),this._trigger("progressall",n,this._progress)}},_initProgressListener:function(t){var r=this,i=t.xhr?t.xhr():n.ajaxSettings.xhr();i.upload&&(n(i.upload).bind("progress",function(n){var i=n.originalEvent;n.lengthComputable=i.lengthComputable,n.loaded=i.loaded,n.total=i.total,r._onProgress(n,t)}),t.xhr=function(){return i})},_initXHRData:function(t){var i,r=t.files[0],f=t.multipart||!n.support.xhrFileUpload,u=t.paramName[0];t.headers=t.headers||{},t.contentRange&&(t.headers["Content-Range"]=t.contentRange),f?n.support.xhrFormDataFileUpload&&(t.postMessage?(i=this._getFormData(t),t.blob?i.push({name:u,value:t.blob}):n.each(t.files,function(n,r){i.push({name:t.paramName[n]||u,value:r})})):(t.formData instanceof FormData?i=t.formData:(i=new FormData,n.each(this._getFormData(t),function(n,t){i.append(t.name,t.value)})),t.blob?(t.headers["Content-Disposition"]='attachment; filename="'+encodeURI(r.name)+'"',i.append(u,t.blob,r.name)):n.each(t.files,function(n,r){(window.Blob&&Object.prototype.toString.call(r)==="[object Blob]"||window.File&&Object.prototype.toString.call(r)==="[object File]")&&i.append(t.paramName[n]||u,r,r.name)})),t.data=i):(t.headers["Content-Disposition"]='attachment; filename="'+encodeURI(r.name)+'"',t.contentType=r.type,t.data=t.blob||r),t.blob=null},_initIframeSettings:function(t){t.dataType="iframe "+(t.dataType||""),t.formData=this._getFormData(t),t.redirect&&n("<a><\/a>").prop("href",t.url).prop("host")!==location.host&&t.formData.push({name:t.redirectParamName||"redirect",value:t.redirect})},_initDataSettings:function(n){this._isXHRUpload(n)?(this._chunkedUpload(n,!0)||(n.data||this._initXHRData(n),this._initProgressListener(n)),n.postMessage&&(n.dataType="postmessage "+(n.dataType||""))):this._initIframeSettings(n,"iframe")},_getParamName:function(t){var r=n(t.fileInput),i=t.paramName;return i?n.isArray(i)||(i=[i]):(i=[],r.each(function(){for(var t=n(this),u=t.prop("name")||"files[]",r=(t.prop("files")||[1]).length;r;)i.push(u),r-=1}),i.length||(i=[r.prop("name")||"files[]"])),i},_initFormSettings:function(t){t.form&&t.form.length||(t.form=n(t.fileInput.prop("form")),t.form.length||(t.form=n(this.options.fileInput.prop("form")))),t.paramName=this._getParamName(t),t.url||(t.url=t.form.prop("action")||location.href),t.type=(t.type||t.form.prop("method")||"").toUpperCase(),t.type!=="POST"&&t.type!=="PUT"&&t.type!=="PATCH"&&(t.type="POST"),t.formAcceptCharset||(t.formAcceptCharset=t.form.attr("accept-charset"))},_getAJAXSettings:function(t){var i=n.extend({},this.options,t);return this._initFormSettings(i),this._initDataSettings(i),i},_getDeferredState:function(n){return n.state?n.state():n.isResolved()?"resolved":n.isRejected()?"rejected":"pending"},_enhancePromise:function(n){return n.success=n.done,n.error=n.fail,n.complete=n.always,n},_getXHRPromise:function(t,i,r){var u=n.Deferred(),f=u.promise();return i=i||this.options.context||f,t===!0?u.resolveWith(i,r):t===!1&&u.rejectWith(i,r),f.abort=u.promise,this._enhancePromise(f)},_addConvenienceMethods:function(n,t){var i=this;t.submit=function(){return this.state()!=="pending"&&(t.jqXHR=this.jqXHR=i._trigger("submit",n,this)!==!1&&i._onSend(n,this)),this.jqXHR||i._getXHRPromise()},t.abort=function(){return this.jqXHR?this.jqXHR.abort():i._getXHRPromise()},t.state=function(){if(this.jqXHR)return i._getDeferredState(this.jqXHR)},t.progress=function(){return this._progress},t.response=function(){return this._response}},_getUploadedBytes:function(n){var i=n.getResponseHeader("Range"),t=i&&i.split("-"),r=t&&t.length>1&&parseInt(t[1],10);return r&&r+1},_chunkedUpload:function(t,i){var u=this,f=t.files[0],e=f.size,r=t.uploadedBytes=t.uploadedBytes||0,c=t.maxChunkSize||e,l=f.slice||f.webkitSlice||f.mozSlice,o=n.Deferred(),s=o.promise(),a,h;return!(this._isXHRUpload(t)&&l&&(r||c<e))||t.data?!1:i?!0:r>=e?(f.error="Uploaded bytes exceed file size",this._getXHRPromise(!1,t.context,[null,"error",f.error])):(h=function(){var i=n.extend({},t),s=i._progress.loaded;i.blob=l.call(f,r,r+c,f.type),i.chunkSize=i.blob.size,i.contentRange="bytes "+r+"-"+(r+i.chunkSize-1)+"/"+e,u._initXHRData(i),u._initProgressListener(i),a=(u._trigger("chunksend",null,i)!==!1&&n.ajax(i)||u._getXHRPromise(!1,i.context)).done(function(f,c,l){r=u._getUploadedBytes(l)||r+i.chunkSize,i._progress.loaded===s&&u._onProgress(n.Event("progress",{lengthComputable:!0,loaded:r-i.uploadedBytes,total:r-i.uploadedBytes}),i),t.uploadedBytes=i.uploadedBytes=r,i.result=f,i.textStatus=c,i.jqXHR=l,u._trigger("chunkdone",null,i),u._trigger("chunkalways",null,i),r<e?h():o.resolveWith(i.context,[f,c,l])}).fail(function(n,t,r){i.jqXHR=n,i.textStatus=t,i.errorThrown=r,u._trigger("chunkfail",null,i),u._trigger("chunkalways",null,i),o.rejectWith(i.context,[n,t,r])})},this._enhancePromise(s),s.abort=function(){return a.abort()},h(),s)},_beforeSend:function(n,t){this._active===0&&(this._trigger("start"),this._bitrateTimer=new this._BitrateTimer,this._progress.loaded=this._progress.total=0,this._progress.bitrate=0),this._initResponseObject(t),this._initProgressObject(t),t._progress.loaded=t.loaded=t.uploadedBytes||0,t._progress.total=t.total=this._getTotal(t.files)||1,t._progress.bitrate=t.bitrate=0,this._active+=1,this._progress.loaded+=t.loaded,this._progress.total+=t.total},_onDone:function(t,i,r,u){var f=u._progress.total,e=u._response;u._progress.loaded<f&&this._onProgress(n.Event("progress",{lengthComputable:!0,loaded:f,total:f}),u),e.result=u.result=t,e.textStatus=u.textStatus=i,e.jqXHR=u.jqXHR=r,this._trigger("done",null,u)},_onFail:function(n,t,i,r){var u=r._response;r.recalculateProgress&&(this._progress.loaded-=r._progress.loaded,this._progress.total-=r._progress.total),u.jqXHR=r.jqXHR=n,u.textStatus=r.textStatus=t,u.errorThrown=r.errorThrown=i,this._trigger("fail",null,r)},_onAlways:function(n,t,i,r){this._trigger("always",null,r)},_onSend:function(t,i){i.submit||this._addConvenienceMethods(t,i);var r=this,f,s,e,h,u=r._getAJAXSettings(i),o=function(){return r._sending+=1,u._bitrateTimer=new r._BitrateTimer,f=f||((s||r._trigger("send",t,u)===!1)&&r._getXHRPromise(!1,u.context,s)||r._chunkedUpload(u)||n.ajax(u)).done(function(n,t,i){r._onDone(n,t,i,u)}).fail(function(n,t,i){r._onFail(n,t,i,u)}).always(function(n,t,i){if(r._onAlways(n,t,i,u),r._sending-=1,r._active-=1,u.limitConcurrentUploads&&u.limitConcurrentUploads>r._sending)for(var f=r._slots.shift();f;){if(r._getDeferredState(f)==="pending"){f.resolve();break}f=r._slots.shift()}r._active===0&&r._trigger("stop")})};return(this._beforeSend(t,u),this.options.sequentialUploads||this.options.limitConcurrentUploads&&this.options.limitConcurrentUploads<=this._sending)?(this.options.limitConcurrentUploads>1?(e=n.Deferred(),this._slots.push(e),h=e.pipe(o)):h=this._sequence=this._sequence.pipe(o,o),h.abort=function(){return(s=[undefined,"abort","abort"],!f)?(e&&e.rejectWith(u.context,s),o()):f.abort()},this._enhancePromise(h)):o()},_onAdd:function(t,i){var s=this,l=!0,u=n.extend({},this.options,i),f=u.limitMultiFileUploads,h=this._getParamName(u),e,c,o,r;if((u.singleFileUploads||f)&&this._isXHRUpload(u))if(!u.singleFileUploads&&f)for(o=[],e=[],r=0;r<i.files.length;r+=f)o.push(i.files.slice(r,r+f)),c=h.slice(r,r+f),c.length||(c=h),e.push(c);else e=h;else o=[i.files],e=[h];return i.originalFiles=i.files,n.each(o||i.files,function(r,u){var f=n.extend({},i);return f.files=o?u:[u],f.paramName=e[r],s._initResponseObject(f),s._initProgressObject(f),s._addConvenienceMethods(t,f),l=s._trigger("add",t,f)}),l},_replaceFileInput:function(t){var i=t.clone(!0);n("<form><\/form>").append(i)[0].reset(),t.after(i).detach(),n.cleanData(t.unbind("remove")),this.options.fileInput=this.options.fileInput.map(function(n,r){return r===t[0]?i[0]:r}),t[0]===this.element[0]&&(this.element=i)},_handleFileTreeEntry:function(t,i){var e=this,r=n.Deferred(),u=function(n){n&&!n.entry&&(n.entry=t),r.resolve([n])},f;return i=i||"",t.isFile?t._file?(t._file.relativePath=i,r.resolve(t._file)):t.file(function(n){n.relativePath=i,r.resolve(n)},u):t.isDirectory?(f=t.createReader(),f.readEntries(function(n){e._handleFileTreeEntries(n,i+t.name+"/").done(function(n){r.resolve(n)}).fail(u)},u)):r.resolve([]),r.promise()},_handleFileTreeEntries:function(t,i){var r=this;return n.when.apply(n,n.map(t,function(n){return r._handleFileTreeEntry(n,i)})).pipe(function(){return Array.prototype.concat.apply([],arguments)})},_getDroppedFiles:function(t){t=t||{};var i=t.items;return i&&i.length&&(i[0].webkitGetAsEntry||i[0].getAsEntry)?this._handleFileTreeEntries(n.map(i,function(n){var t;return n.webkitGetAsEntry?(t=n.webkitGetAsEntry(),t&&(t._file=n.getAsFile()),t):n.getAsEntry()})):n.Deferred().resolve(n.makeArray(t.files)).promise()},_getSingleFileInputFiles:function(t){t=n(t);var r=t.prop("webkitEntries")||t.prop("entries"),i,u;if(r&&r.length)return this._handleFileTreeEntries(r);if(i=n.makeArray(t.prop("files")),i.length)i[0].name===undefined&&i[0].fileName&&n.each(i,function(n,t){t.name=t.fileName,t.size=t.fileSize});else{if(u=t.prop("value"),!u)return n.Deferred().resolve([]).promise();i=[{name:u.replace(/^.*\\/,"")}]}return n.Deferred().resolve(i).promise()},_getFileInputFiles:function(t){return!(t instanceof n)||t.length===1?this._getSingleFileInputFiles(t):n.when.apply(n,n.map(t,this._getSingleFileInputFiles)).pipe(function(){return Array.prototype.concat.apply([],arguments)})},_onChange:function(t){var r=this,i={fileInput:n(t.target),form:n(t.target.form)};this._getFileInputFiles(i.fileInput).always(function(n){i.files=n,r.options.replaceFileInput&&r._replaceFileInput(i.fileInput),r._trigger("change",t,i)!==!1&&r._onAdd(t,i)})},_onPaste:function(t){var r=t.originalEvent.clipboardData,u=r&&r.items||[],i={files:[]};return n.each(u,function(n,t){var r=t.getAsFile&&t.getAsFile();r&&i.files.push(r)}),this._trigger("paste",t,i)===!1||this._onAdd(t,i)===!1?!1:void 0},_onDrop:function(n){var r=this,t=n.dataTransfer=n.originalEvent.dataTransfer,i={};t&&t.files&&t.files.length&&n.preventDefault(),this._getDroppedFiles(t).always(function(t){i.files=t,r._trigger("drop",n,i)!==!1&&r._onAdd(n,i)})},_onDragOver:function(t){var i=t.dataTransfer=t.originalEvent.dataTransfer;if(this._trigger("dragover",t)===!1)return!1;i&&n.inArray("Files",i.types)!==-1&&(i.dropEffect="copy",t.preventDefault())},_initEventHandlers:function(){this._isXHRUpload(this.options)&&(this._on(this.options.dropZone,{dragover:this._onDragOver,drop:this._onDrop}),this._on(this.options.pasteZone,{paste:this._onPaste})),this._on(this.options.fileInput,{change:this._onChange})},_destroyEventHandlers:function(){this._off(this.options.dropZone,"dragover drop"),this._off(this.options.pasteZone,"paste"),this._off(this.options.fileInput,"change")},_setOption:function(t,i){var r=n.inArray(t,this._refreshOptionsList)!==-1;r&&this._destroyEventHandlers(),this._super(t,i),r&&(this._initSpecialOptions(),this._initEventHandlers())},_initSpecialOptions:function(){var t=this.options;t.fileInput===undefined?t.fileInput=this.element.is('input[type="file"]')?this.element:this.element.find('input[type="file"]'):t.fileInput instanceof n||(t.fileInput=n(t.fileInput)),t.dropZone instanceof n||(t.dropZone=n(t.dropZone)),t.pasteZone instanceof n||(t.pasteZone=n(t.pasteZone))},_create:function(){var t=this.options;n.extend(t,n(this.element[0].cloneNode(!1)).data()),this._initSpecialOptions(),this._slots=[],this._sequence=this._getXHRPromise(!0),this._sending=this._active=0,this._initProgressObject(this),this._initEventHandlers()},active:function(){return this._active},progress:function(){return this._progress},add:function(t){var i=this;t&&!this.options.disabled&&(t.fileInput&&!t.files?this._getFileInputFiles(t.fileInput).always(function(n){t.files=n,i._onAdd(null,t)}):(t.files=n.makeArray(t.files),this._onAdd(null,t)))},send:function(t){if(t&&!this.options.disabled){if(t.fileInput&&!t.files){var e=this,i=n.Deferred(),r=i.promise(),u,f;return r.abort=function(){return(f=!0,u)?u.abort():(i.reject(null,"abort","abort"),r)},this._getFileInputFiles(t.fileInput).always(function(n){f||(t.files=n,u=e._onSend(null,t).then(function(n,t,r){i.resolve(n,t,r)},function(n,t,r){i.reject(n,t,r)}))}),this._enhancePromise(r)}if(t.files=n.makeArray(t.files),t.files.length)return this._onSend(null,t)}return this._getXHRPromise(!1,t&&t.context)}})});
-//@ sourceMappingURL=jquery.fileupload.min.js.map
\ No newline at end of file
+(function(n){"use strict";typeof define=="function"&&define.amd?define(["jquery","jquery.ui.widget"],n):n(window.jQuery)})(function(n){"use strict";n.support.fileInput=!(new RegExp("(Android (1\\.[0156]|2\\.[01]))|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)|(w(eb)?OSBrowser)|(webOS)|(Kindle/(1\\.0|2\\.[05]|3\\.0))").test(window.navigator.userAgent)||n('<input type="file">').prop("disabled"));n.support.xhrFileUpload=!!(window.ProgressEvent&&window.FileReader);n.support.xhrFormDataFileUpload=!!window.FormData;n.support.blobSlice=window.Blob&&(Blob.prototype.slice||Blob.prototype.webkitSlice||Blob.prototype.mozSlice);n.widget("blueimp.fileupload",{options:{dropZone:n(document),pasteZone:n(document),fileInput:undefined,replaceFileInput:!0,paramName:undefined,singleFileUploads:!0,limitMultiFileUploads:undefined,limitMultiFileUploadSize:undefined,limitMultiFileUploadSizeOverhead:512,sequentialUploads:!1,limitConcurrentUploads:undefined,forceIframeTransport:!1,redirect:undefined,redirectParamName:undefined,postMessage:undefined,multipart:!0,maxChunkSize:undefined,uploadedBytes:undefined,recalculateProgress:!0,progressInterval:100,bitrateInterval:500,autoUpload:!0,messages:{uploadedBytes:"Uploaded bytes exceed file size"},i18n:function(t,i){return t=this.messages[t]||t.toString(),i&&n.each(i,function(n,i){t=t.replace("{"+n+"}",i)}),t},formData:function(n){return n.serializeArray()},add:function(t,i){if(t.isDefaultPrevented())return!1;(i.autoUpload||i.autoUpload!==!1&&n(this).fileupload("option","autoUpload"))&&i.process().done(function(){i.submit()})},processData:!1,contentType:!1,cache:!1},_specialOptions:["fileInput","dropZone","pasteZone","multipart","forceIframeTransport"],_blobSlice:n.support.blobSlice&&function(){var n=this.slice||this.webkitSlice||this.mozSlice;return n.apply(this,arguments)},_BitrateTimer:function(){this.timestamp=Date.now?Date.now():(new Date).getTime();this.loaded=0;this.bitrate=0;this.getBitrate=function(n,t,i){var r=n-this.timestamp;return(!this.bitrate||!i||r>i)&&(this.bitrate=(t-this.loaded)*(1e3/r)*8,this.loaded=t,this.timestamp=n),this.bitrate}},_isXHRUpload:function(t){return!t.forceIframeTransport&&(!t.multipart&&n.support.xhrFileUpload||n.support.xhrFormDataFileUpload)},_getFormData:function(t){var i;return n.type(t.formData)==="function"?t.formData(t.form):n.isArray(t.formData)?t.formData:n.type(t.formData)==="object"?(i=[],n.each(t.formData,function(n,t){i.push({name:n,value:t})}),i):[]},_getTotal:function(t){var i=0;return n.each(t,function(n,t){i+=t.size||1}),i},_initProgressObject:function(t){var i={loaded:0,total:0,bitrate:0};t._progress?n.extend(t._progress,i):t._progress=i},_initResponseObject:function(n){var t;if(n._response)for(t in n._response)n._response.hasOwnProperty(t)&&delete n._response[t];else n._response={}},_onProgress:function(t,i){if(t.lengthComputable){var r=Date.now?Date.now():(new Date).getTime(),u;if(i._time&&i.progressInterval&&r-i._time<i.progressInterval&&t.loaded!==t.total)return;i._time=r;u=Math.floor(t.loaded/t.total*(i.chunkSize||i._progress.total))+(i.uploadedBytes||0);this._progress.loaded+=u-i._progress.loaded;this._progress.bitrate=this._bitrateTimer.getBitrate(r,this._progress.loaded,i.bitrateInterval);i._progress.loaded=i.loaded=u;i._progress.bitrate=i.bitrate=i._bitrateTimer.getBitrate(r,u,i.bitrateInterval);this._trigger("progress",n.Event("progress",{delegatedEvent:t}),i);this._trigger("progressall",n.Event("progressall",{delegatedEvent:t}),this._progress)}},_initProgressListener:function(t){var r=this,i=t.xhr?t.xhr():n.ajaxSettings.xhr();i.upload&&(n(i.upload).bind("progress",function(n){var i=n.originalEvent;n.lengthComputable=i.lengthComputable;n.loaded=i.loaded;n.total=i.total;r._onProgress(n,t)}),t.xhr=function(){return i})},_isInstanceOf:function(n,t){return Object.prototype.toString.call(t)==="[object "+n+"]"},_initXHRData:function(t){var f=this,i,r=t.files[0],e=t.multipart||!n.support.xhrFileUpload,u=n.type(t.paramName)==="array"?t.paramName[0]:t.paramName;t.headers=n.extend({},t.headers);t.contentRange&&(t.headers["Content-Range"]=t.contentRange);e&&!t.blob&&this._isInstanceOf("File",r)||(t.headers["Content-Disposition"]='attachment; filename="'+encodeURI(r.name)+'"');e?n.support.xhrFormDataFileUpload&&(t.postMessage?(i=this._getFormData(t),t.blob?i.push({name:u,value:t.blob}):n.each(t.files,function(r,f){i.push({name:n.type(t.paramName)==="array"&&t.paramName[r]||u,value:f})})):(f._isInstanceOf("FormData",t.formData)?i=t.formData:(i=new FormData,n.each(this._getFormData(t),function(n,t){i.append(t.name,t.value)})),t.blob?i.append(u,t.blob,r.name):n.each(t.files,function(r,e){(f._isInstanceOf("File",e)||f._isInstanceOf("Blob",e))&&i.append(n.type(t.paramName)==="array"&&t.paramName[r]||u,e,e.uploadName||e.name)})),t.data=i):(t.contentType=r.type||"application/octet-stream",t.data=t.blob||r);t.blob=null},_initIframeSettings:function(t){var i=n("<a><\/a>").prop("href",t.url).prop("host");t.dataType="iframe "+(t.dataType||"");t.formData=this._getFormData(t);t.redirect&&i&&i!==location.host&&t.formData.push({name:t.redirectParamName||"redirect",value:t.redirect})},_initDataSettings:function(n){this._isXHRUpload(n)?(this._chunkedUpload(n,!0)||(n.data||this._initXHRData(n),this._initProgressListener(n)),n.postMessage&&(n.dataType="postmessage "+(n.dataType||""))):this._initIframeSettings(n)},_getParamName:function(t){var r=n(t.fileInput),i=t.paramName;return i?n.isArray(i)||(i=[i]):(i=[],r.each(function(){for(var t=n(this),u=t.prop("name")||"files[]",r=(t.prop("files")||[1]).length;r;)i.push(u),r-=1}),i.length||(i=[r.prop("name")||"files[]"])),i},_initFormSettings:function(t){t.form&&t.form.length||(t.form=n(t.fileInput.prop("form")),t.form.length||(t.form=n(this.options.fileInput.prop("form"))));t.paramName=this._getParamName(t);t.url||(t.url=t.form.prop("action")||location.href);t.type=(t.type||n.type(t.form.prop("method"))==="string"&&t.form.prop("method")||"").toUpperCase();t.type!=="POST"&&t.type!=="PUT"&&t.type!=="PATCH"&&(t.type="POST");t.formAcceptCharset||(t.formAcceptCharset=t.form.attr("accept-charset"))},_getAJAXSettings:function(t){var i=n.extend({},this.options,t);return this._initFormSettings(i),this._initDataSettings(i),i},_getDeferredState:function(n){return n.state?n.state():n.isResolved()?"resolved":n.isRejected()?"rejected":"pending"},_enhancePromise:function(n){return n.success=n.done,n.error=n.fail,n.complete=n.always,n},_getXHRPromise:function(t,i,r){var u=n.Deferred(),f=u.promise();return i=i||this.options.context||f,t===!0?u.resolveWith(i,r):t===!1&&u.rejectWith(i,r),f.abort=u.promise,this._enhancePromise(f)},_addConvenienceMethods:function(t,i){var r=this,u=function(t){return n.Deferred().resolveWith(r,t).promise()};i.process=function(t,f){return(t||f)&&(i._processQueue=this._processQueue=(this._processQueue||u([this])).pipe(function(){return i.errorThrown?n.Deferred().rejectWith(r,[i]).promise():u(arguments)}).pipe(t,f)),this._processQueue||u([this])};i.submit=function(){return this.state()!=="pending"&&(i.jqXHR=this.jqXHR=r._trigger("submit",n.Event("submit",{delegatedEvent:t}),this)!==!1&&r._onSend(t,this)),this.jqXHR||r._getXHRPromise()};i.abort=function(){return this.jqXHR?this.jqXHR.abort():(this.errorThrown="abort",r._trigger("fail",null,this),r._getXHRPromise(!1))};i.state=function(){return this.jqXHR?r._getDeferredState(this.jqXHR):this._processQueue?r._getDeferredState(this._processQueue):void 0};i.processing=function(){return!this.jqXHR&&this._processQueue&&r._getDeferredState(this._processQueue)==="pending"};i.progress=function(){return this._progress};i.response=function(){return this._response}},_getUploadedBytes:function(n){var i=n.getResponseHeader("Range"),t=i&&i.split("-"),r=t&&t.length>1&&parseInt(t[1],10);return r&&r+1},_chunkedUpload:function(t,i){t.uploadedBytes=t.uploadedBytes||0;var u=this,f=t.files[0],e=f.size,r=t.uploadedBytes,c=t.maxChunkSize||e,l=this._blobSlice,o=n.Deferred(),s=o.promise(),a,h;return!(this._isXHRUpload(t)&&l&&(r||c<e))||t.data?!1:i?!0:r>=e?(f.error=t.i18n("uploadedBytes"),this._getXHRPromise(!1,t.context,[null,"error",f.error])):(h=function(){var i=n.extend({},t),s=i._progress.loaded;i.blob=l.call(f,r,r+c,f.type);i.chunkSize=i.blob.size;i.contentRange="bytes "+r+"-"+(r+i.chunkSize-1)+"/"+e;u._initXHRData(i);u._initProgressListener(i);a=(u._trigger("chunksend",null,i)!==!1&&n.ajax(i)||u._getXHRPromise(!1,i.context)).done(function(f,c,l){r=u._getUploadedBytes(l)||r+i.chunkSize;s+i.chunkSize-i._progress.loaded&&u._onProgress(n.Event("progress",{lengthComputable:!0,loaded:r-i.uploadedBytes,total:r-i.uploadedBytes}),i);t.uploadedBytes=i.uploadedBytes=r;i.result=f;i.textStatus=c;i.jqXHR=l;u._trigger("chunkdone",null,i);u._trigger("chunkalways",null,i);r<e?h():o.resolveWith(i.context,[f,c,l])}).fail(function(n,t,r){i.jqXHR=n;i.textStatus=t;i.errorThrown=r;u._trigger("chunkfail",null,i);u._trigger("chunkalways",null,i);o.rejectWith(i.context,[n,t,r])})},this._enhancePromise(s),s.abort=function(){return a.abort()},h(),s)},_beforeSend:function(n,t){this._active===0&&(this._trigger("start"),this._bitrateTimer=new this._BitrateTimer,this._progress.loaded=this._progress.total=0,this._progress.bitrate=0);this._initResponseObject(t);this._initProgressObject(t);t._progress.loaded=t.loaded=t.uploadedBytes||0;t._progress.total=t.total=this._getTotal(t.files)||1;t._progress.bitrate=t.bitrate=0;this._active+=1;this._progress.loaded+=t.loaded;this._progress.total+=t.total},_onDone:function(t,i,r,u){var f=u._progress.total,e=u._response;u._progress.loaded<f&&this._onProgress(n.Event("progress",{lengthComputable:!0,loaded:f,total:f}),u);e.result=u.result=t;e.textStatus=u.textStatus=i;e.jqXHR=u.jqXHR=r;this._trigger("done",null,u)},_onFail:function(n,t,i,r){var u=r._response;r.recalculateProgress&&(this._progress.loaded-=r._progress.loaded,this._progress.total-=r._progress.total);u.jqXHR=r.jqXHR=n;u.textStatus=r.textStatus=t;u.errorThrown=r.errorThrown=i;this._trigger("fail",null,r)},_onAlways:function(n,t,i,r){this._trigger("always",null,r)},_onSend:function(t,i){i.submit||this._addConvenienceMethods(t,i);var r=this,f,s,e,h,u=r._getAJAXSettings(i),o=function(){return r._sending+=1,u._bitrateTimer=new r._BitrateTimer,f=f||((s||r._trigger("send",n.Event("send",{delegatedEvent:t}),u)===!1)&&r._getXHRPromise(!1,u.context,s)||r._chunkedUpload(u)||n.ajax(u)).done(function(n,t,i){r._onDone(n,t,i,u)}).fail(function(n,t,i){r._onFail(n,t,i,u)}).always(function(n,t,i){if(r._onAlways(n,t,i,u),r._sending-=1,r._active-=1,u.limitConcurrentUploads&&u.limitConcurrentUploads>r._sending)for(var f=r._slots.shift();f;){if(r._getDeferredState(f)==="pending"){f.resolve();break}f=r._slots.shift()}r._active===0&&r._trigger("stop")})};return(this._beforeSend(t,u),this.options.sequentialUploads||this.options.limitConcurrentUploads&&this.options.limitConcurrentUploads<=this._sending)?(this.options.limitConcurrentUploads>1?(e=n.Deferred(),this._slots.push(e),h=e.pipe(o)):(this._sequence=this._sequence.pipe(o,o),h=this._sequence),h.abort=function(){return(s=[undefined,"abort","abort"],!f)?(e&&e.rejectWith(u.context,s),o()):f.abort()},this._enhancePromise(h)):o()},_onAdd:function(t,i){var a=this,p=!0,f=n.extend({},this.options,i),u=i.files,v=u.length,o=f.limitMultiFileUploads,c=f.limitMultiFileUploadSize,b=f.limitMultiFileUploadSizeOverhead,w=0,l=this._getParamName(f),s,e,h,r,y=0;if(c&&(!v||u[0].size===undefined)&&(c=undefined),(f.singleFileUploads||o||c)&&this._isXHRUpload(f))if(f.singleFileUploads||c||!o)if(!f.singleFileUploads&&c)for(h=[],s=[],r=0;r<v;r=r+1)w+=u[r].size+b,(r+1===v||w+u[r+1].size+b>c||o&&r+1-y>=o)&&(h.push(u.slice(y,r+1)),e=l.slice(y,r+1),e.length||(e=l),s.push(e),y=r+1,w=0);else s=l;else for(h=[],s=[],r=0;r<v;r+=o)h.push(u.slice(r,r+o)),e=l.slice(r,r+o),e.length||(e=l),s.push(e);else h=[u],s=[l];return i.originalFiles=u,n.each(h||u,function(r,u){var f=n.extend({},i);return f.files=h?u:[u],f.paramName=s[r],a._initResponseObject(f),a._initProgressObject(f),a._addConvenienceMethods(t,f),p=a._trigger("add",n.Event("add",{delegatedEvent:t}),f)}),p},_replaceFileInput:function(t){var i=t.fileInput,r=i.clone(!0);t.fileInputClone=r;n("<form><\/form>").append(r)[0].reset();i.after(r).detach();n.cleanData(i.unbind("remove"));this.options.fileInput=this.options.fileInput.map(function(n,t){return t===i[0]?r[0]:t});i[0]===this.element[0]&&(this.element=r)},_handleFileTreeEntry:function(t,i){var s=this,r=n.Deferred(),u=function(n){n&&!n.entry&&(n.entry=t);r.resolve([n])},h=function(n){s._handleFileTreeEntries(n,i+t.name+"/").done(function(n){r.resolve(n)}).fail(u)},e=function(){o.readEntries(function(n){n.length?(f=f.concat(n),e()):h(f)},u)},o,f=[];return i=i||"",t.isFile?t._file?(t._file.relativePath=i,r.resolve(t._file)):t.file(function(n){n.relativePath=i;r.resolve(n)},u):t.isDirectory?(o=t.createReader(),e()):r.resolve([]),r.promise()},_handleFileTreeEntries:function(t,i){var r=this;return n.when.apply(n,n.map(t,function(n){return r._handleFileTreeEntry(n,i)})).pipe(function(){return Array.prototype.concat.apply([],arguments)})},_getDroppedFiles:function(t){t=t||{};var i=t.items;return i&&i.length&&(i[0].webkitGetAsEntry||i[0].getAsEntry)?this._handleFileTreeEntries(n.map(i,function(n){var t;return n.webkitGetAsEntry?(t=n.webkitGetAsEntry(),t&&(t._file=n.getAsFile()),t):n.getAsEntry()})):n.Deferred().resolve(n.makeArray(t.files)).promise()},_getSingleFileInputFiles:function(t){t=n(t);var r=t.prop("webkitEntries")||t.prop("entries"),i,u;if(r&&r.length)return this._handleFileTreeEntries(r);if(i=n.makeArray(t.prop("files")),i.length)i[0].name===undefined&&i[0].fileName&&n.each(i,function(n,t){t.name=t.fileName;t.size=t.fileSize});else{if(u=t.prop("value"),!u)return n.Deferred().resolve([]).promise();i=[{name:u.replace(/^.*\\/,"")}]}return n.Deferred().resolve(i).promise()},_getFileInputFiles:function(t){return!(t instanceof n)||t.length===1?this._getSingleFileInputFiles(t):n.when.apply(n,n.map(t,this._getSingleFileInputFiles)).pipe(function(){return Array.prototype.concat.apply([],arguments)})},_onChange:function(t){var r=this,i={fileInput:n(t.target),form:n(t.target.form)};this._getFileInputFiles(i.fileInput).always(function(u){i.files=u;r.options.replaceFileInput&&r._replaceFileInput(i);r._trigger("change",n.Event("change",{delegatedEvent:t}),i)!==!1&&r._onAdd(t,i)})},_onPaste:function(t){var i=t.originalEvent&&t.originalEvent.clipboardData&&t.originalEvent.clipboardData.items,r={files:[]};i&&i.length&&(n.each(i,function(n,t){var i=t.getAsFile&&t.getAsFile();i&&r.files.push(i)}),this._trigger("paste",n.Event("paste",{delegatedEvent:t}),r)!==!1&&this._onAdd(t,r))},_onDrop:function(t){t.dataTransfer=t.originalEvent&&t.originalEvent.dataTransfer;var u=this,i=t.dataTransfer,r={};i&&i.files&&i.files.length&&(t.preventDefault(),this._getDroppedFiles(i).always(function(i){r.files=i;u._trigger("drop",n.Event("drop",{delegatedEvent:t}),r)!==!1&&u._onAdd(t,r)}))},_onDragOver:function(t){t.dataTransfer=t.originalEvent&&t.originalEvent.dataTransfer;var i=t.dataTransfer;i&&n.inArray("Files",i.types)!==-1&&this._trigger("dragover",n.Event("dragover",{delegatedEvent:t}))!==!1&&(t.preventDefault(),i.dropEffect="copy")},_initEventHandlers:function(){this._isXHRUpload(this.options)&&(this._on(this.options.dropZone,{dragover:this._onDragOver,drop:this._onDrop}),this._on(this.options.pasteZone,{paste:this._onPaste}));n.support.fileInput&&this._on(this.options.fileInput,{change:this._onChange})},_destroyEventHandlers:function(){this._off(this.options.dropZone,"dragover drop");this._off(this.options.pasteZone,"paste");this._off(this.options.fileInput,"change")},_setOption:function(t,i){var r=n.inArray(t,this._specialOptions)!==-1;r&&this._destroyEventHandlers();this._super(t,i);r&&(this._initSpecialOptions(),this._initEventHandlers())},_initSpecialOptions:function(){var t=this.options;t.fileInput===undefined?t.fileInput=this.element.is('input[type="file"]')?this.element:this.element.find('input[type="file"]'):t.fileInput instanceof n||(t.fileInput=n(t.fileInput));t.dropZone instanceof n||(t.dropZone=n(t.dropZone));t.pasteZone instanceof n||(t.pasteZone=n(t.pasteZone))},_getRegExp:function(n){var t=n.split("/"),i=t.pop();return t.shift(),new RegExp(t.join("/"),i)},_isRegExpOption:function(t,i){return t!=="url"&&n.type(i)==="string"&&/^\/.*\/[igm]{0,3}$/.test(i)},_initDataAttributes:function(){var t=this,r=this.options,i=n(this.element[0].cloneNode(!1));n.each(i.data(),function(n,u){var f="data-"+n.replace(/([a-z])([A-Z])/g,"$1-$2").toLowerCase();i.attr(f)&&(t._isRegExpOption(n,u)&&(u=t._getRegExp(u)),r[n]=u)})},_create:function(){this._initDataAttributes();this._initSpecialOptions();this._slots=[];this._sequence=this._getXHRPromise(!0);this._sending=this._active=0;this._initProgressObject(this);this._initEventHandlers()},active:function(){return this._active},progress:function(){return this._progress},add:function(t){var i=this;t&&!this.options.disabled&&(t.fileInput&&!t.files?this._getFileInputFiles(t.fileInput).always(function(n){t.files=n;i._onAdd(null,t)}):(t.files=n.makeArray(t.files),this._onAdd(null,t)))},send:function(t){if(t&&!this.options.disabled){if(t.fileInput&&!t.files){var e=this,i=n.Deferred(),u=i.promise(),r,f;return u.abort=function(){return(f=!0,r)?r.abort():(i.reject(null,"abort","abort"),u)},this._getFileInputFiles(t.fileInput).always(function(n){if(!f){if(!n.length){i.reject();return}t.files=n;r=e._onSend(null,t);r.then(function(n,t,r){i.resolve(n,t,r)},function(n,t,r){i.reject(n,t,r)})}}),this._enhancePromise(u)}if(t.files=n.makeArray(t.files),t.files.length)return this._onSend(null,t)}return this._getXHRPromise(!1,t&&t.context)}})});
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.js b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.js
index ed2589506..32f3920e8 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.js
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.js
@@ -1,5 +1,5 @@
 /*
- * jQuery Iframe Transport Plugin 1.6.1
+ * jQuery Iframe Transport Plugin 1.8.2
  * https://github.com/blueimp/jQuery-File-Upload
  *
  * Copyright 2011, Sebastian Tschan
@@ -9,8 +9,7 @@
  * http://www.opensource.org/licenses/MIT
  */
 
-/*jslint unparam: true, nomen: true */
-/*global define, window, document */
+/* global define, window, document */
 
 (function (factory) {
     'use strict';
@@ -27,7 +26,7 @@
     // Helper variable to create unique names for the transport iframes:
     var counter = 0;
 
-    // The iframe transport accepts three additional options:
+    // The iframe transport accepts four additional options:
     // options.fileInput: a jQuery collection of file input fields
     // options.paramName: the parameter name for the file form data,
     //  overrides the name property of the file input field(s),
@@ -35,9 +34,16 @@
     // options.formData: an array of objects with name and value properties,
     //  equivalent to the return data of .serializeArray(), e.g.:
     //  [{name: 'a', value: 1}, {name: 'b', value: 2}]
+    // options.initialIframeSrc: the URL of the initial iframe src,
+    //  by default set to "javascript:false;"
     $.ajaxTransport('iframe', function (options) {
         if (options.async) {
-            var form,
+            // javascript:false as initial iframe src
+            // prevents warning popups on HTTPS in IE6:
+            /*jshint scripturl: true */
+            var initialIframeSrc = options.initialIframeSrc || 'javascript:false;',
+            /*jshint scripturl: false */
+                form,
                 iframe,
                 addParamChar;
             return {
@@ -56,14 +62,13 @@
                         options.url = options.url + addParamChar + '_method=PATCH';
                         options.type = 'POST';
                     }
-                    // javascript:false as initial iframe src
-                    // prevents warning popups on HTTPS in IE6.
                     // IE versions below IE8 cannot set the name property of
                     // elements that have already been added to the DOM,
                     // so we set the name along with the iframe HTML markup:
+                    counter += 1;
                     iframe = $(
-                        '<iframe src="javascript:false;" name="iframe-transport-' +
-                            (counter += 1) + '"></iframe>'
+                        '<iframe src="' + initialIframeSrc +
+                            '" name="iframe-transport-' + counter + '"></iframe>'
                     ).bind('load', function () {
                         var fileInputClones,
                             paramNames = $.isArray(options.paramName) ?
@@ -90,13 +95,18 @@
                                 completeCallback(
                                     200,
                                     'success',
-                                    {'iframe': response}
+                                    { 'iframe': response }
                                 );
                                 // Fix for IE endless progress bar activity bug
                                 // (happens on form submits to iframe targets):
-                                $('<iframe src="javascript:false;"></iframe>')
+                                $('<iframe src="' + initialIframeSrc + '"></iframe>')
                                     .appendTo(form);
-                                form.remove();
+                                window.setTimeout(function () {
+                                    // Removing the form in a setTimeout call
+                                    // allows Chrome's developer tools to display
+                                    // the response result
+                                    form.remove();
+                                }, 0);
                             });
                         form
                             .prop('target', iframe.prop('name'))
@@ -132,6 +142,8 @@
                                 .prop('enctype', 'multipart/form-data')
                                 // enctype must be set as encoding for IE:
                                 .prop('encoding', 'multipart/form-data');
+                            // Remove the HTML5 form attribute from the input(s):
+                            options.fileInput.removeAttr('form');
                         }
                         form.submit();
                         // Insert the file input fields at their original location
@@ -139,7 +151,10 @@
                         if (fileInputClones && fileInputClones.length) {
                             options.fileInput.each(function (index, input) {
                                 var clone = $(fileInputClones[index]);
-                                $(input).prop('name', clone.prop('name'));
+                                // Restore the original name and form properties:
+                                $(input)
+                                    .prop('name', clone.prop('name'))
+                                    .attr('form', clone.attr('form'));
                                 clone.replaceWith(input);
                             });
                         }
@@ -153,7 +168,7 @@
                         // concat is used to avoid the "Script URL" JSLint error:
                         iframe
                             .unbind('load')
-                            .prop('src', 'javascript'.concat(':false;'));
+                            .prop('src', initialIframeSrc);
                     }
                     if (form) {
                         form.remove();
@@ -164,7 +179,15 @@
     });
 
     // The iframe transport returns the iframe content document as response.
-    // The following adds converters from iframe to text, json, html, and script:
+    // The following adds converters from iframe to text, json, html, xml
+    // and script.
+    // Please note that the Content-Type for JSON responses has to be text/plain
+    // or text/html, if the browser doesn't include application/json in the
+    // Accept header, else IE will show a download dialog.
+    // The Content-Type for XML responses on the other hand has to be always
+    // application/xml or text/xml, so IE properly parses the XML response.
+    // See also
+    // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation
     $.ajaxSetup({
         converters: {
             'iframe text': function (iframe) {
@@ -176,10 +199,16 @@
             'iframe html': function (iframe) {
                 return iframe && $(iframe[0].body).html();
             },
+            'iframe xml': function (iframe) {
+                var xmlDoc = iframe && iframe[0];
+                return xmlDoc && $.isXMLDoc(xmlDoc) ? xmlDoc :
+                        $.parseXML((xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) ||
+                            $(xmlDoc.body).html());
+            },
             'iframe script': function (iframe) {
                 return iframe && $.globalEval($(iframe[0].body).text());
             }
         }
     });
 
-}));
+}));
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.min.js b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.min.js
index 9172a8e1d..7123b4075 100644
--- a/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.min.js
+++ b/src/Orchard.Web/Modules/Orchard.jQuery/Scripts/jquery.iframe-transport.min.js
@@ -1,2 +1 @@
-(function(n){"use strict";typeof define=="function"&&define.amd?define(["jquery"],n):n(window.jQuery)})(function(n){"use strict";var t=0;n.ajaxTransport("iframe",function(i){if(i.async){var r,u,f;return{send:function(e,o){r=n('<form style="display:none;"><\/form>'),r.attr("accept-charset",i.formAcceptCharset),f=/\?/.test(i.url)?"&":"?",i.type==="DELETE"?(i.url=i.url+f+"_method=DELETE",i.type="POST"):i.type==="PUT"?(i.url=i.url+f+"_method=PUT",i.type="POST"):i.type==="PATCH"&&(i.url=i.url+f+"_method=PATCH",i.type="POST"),u=n('<iframe src="javascript:false;" name="iframe-transport-'+(t+=1)+'"><\/iframe>').bind("load",function(){var t,f=n.isArray(i.paramName)?i.paramName:[i.paramName];u.unbind("load").bind("load",function(){var t;try{if(t=u.contents(),!t.length||!t[0].firstChild)throw new Error;}catch(i){t=undefined}o(200,"success",{iframe:t}),n('<iframe src="javascript:false;"><\/iframe>').appendTo(r),r.remove()}),r.prop("target",u.prop("name")).prop("action",i.url).prop("method",i.type),i.formData&&n.each(i.formData,function(t,i){n('<input type="hidden"/>').prop("name",i.name).val(i.value).appendTo(r)}),i.fileInput&&i.fileInput.length&&i.type==="POST"&&(t=i.fileInput.clone(),i.fileInput.after(function(n){return t[n]}),i.paramName&&i.fileInput.each(function(t){n(this).prop("name",f[t]||i.paramName)}),r.append(i.fileInput).prop("enctype","multipart/form-data").prop("encoding","multipart/form-data")),r.submit(),t&&t.length&&i.fileInput.each(function(i,r){var u=n(t[i]);n(r).prop("name",u.prop("name")),u.replaceWith(r)})}),r.append(u).appendTo(document.body)},abort:function(){u&&u.unbind("load").prop("src","javascript".concat(":false;")),r&&r.remove()}}}}),n.ajaxSetup({converters:{"iframe text":function(t){return t&&n(t[0].body).text()},"iframe json":function(t){return t&&n.parseJSON(n(t[0].body).text())},"iframe html":function(t){return t&&n(t[0].body).html()},"iframe script":function(t){return t&&n.globalEval(n(t[0].body).text())}}})});
-//@ sourceMappingURL=jquery.iframe-transport.min.js.map
\ No newline at end of file
+(function(n){"use strict";typeof define=="function"&&define.amd?define(["jquery"],n):n(window.jQuery)})(function(n){"use strict";var t=0;n.ajaxTransport("iframe",function(i){if(i.async){var e=i.initialIframeSrc||"javascript:false;",r,u,f;return{send:function(o,s){r=n('<form style="display:none;"><\/form>');r.attr("accept-charset",i.formAcceptCharset);f=/\?/.test(i.url)?"&":"?";i.type==="DELETE"?(i.url=i.url+f+"_method=DELETE",i.type="POST"):i.type==="PUT"?(i.url=i.url+f+"_method=PUT",i.type="POST"):i.type==="PATCH"&&(i.url=i.url+f+"_method=PATCH",i.type="POST");t+=1;u=n('<iframe src="'+e+'" name="iframe-transport-'+t+'"><\/iframe>').bind("load",function(){var t,f=n.isArray(i.paramName)?i.paramName:[i.paramName];u.unbind("load").bind("load",function(){var t;try{if(t=u.contents(),!t.length||!t[0].firstChild)throw new Error;}catch(i){t=undefined}s(200,"success",{iframe:t});n('<iframe src="'+e+'"><\/iframe>').appendTo(r);window.setTimeout(function(){r.remove()},0)});r.prop("target",u.prop("name")).prop("action",i.url).prop("method",i.type);i.formData&&n.each(i.formData,function(t,i){n('<input type="hidden"/>').prop("name",i.name).val(i.value).appendTo(r)});i.fileInput&&i.fileInput.length&&i.type==="POST"&&(t=i.fileInput.clone(),i.fileInput.after(function(n){return t[n]}),i.paramName&&i.fileInput.each(function(t){n(this).prop("name",f[t]||i.paramName)}),r.append(i.fileInput).prop("enctype","multipart/form-data").prop("encoding","multipart/form-data"),i.fileInput.removeAttr("form"));r.submit();t&&t.length&&i.fileInput.each(function(i,r){var u=n(t[i]);n(r).prop("name",u.prop("name")).attr("form",u.attr("form"));u.replaceWith(r)})});r.append(u).appendTo(document.body)},abort:function(){u&&u.unbind("load").prop("src",e);r&&r.remove()}}}});n.ajaxSetup({converters:{"iframe text":function(t){return t&&n(t[0].body).text()},"iframe json":function(t){return t&&n.parseJSON(n(t[0].body).text())},"iframe html":function(t){return t&&n(t[0].body).html()},"iframe xml":function(t){var i=t&&t[0];return i&&n.isXMLDoc(i)?i:n.parseXML(i.XMLDocument&&i.XMLDocument.xml||n(i.body).html())},"iframe script":function(t){return t&&n.globalEval(n(t[0].body).text())}}})});
\ No newline at end of file