diff --git a/blueimp-file-upload.jquery.json b/blueimp-file-upload.jquery.json
index 8119b8244..998ea9d75 100644
--- a/blueimp-file-upload.jquery.json
+++ b/blueimp-file-upload.jquery.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-file-upload",
-  "version": "9.9.2",
+  "version": "9.9.3",
   "title": "jQuery File Upload",
   "author": {
     "name": "Sebastian Tschan",
diff --git a/bower.json b/bower.json
index 1f17e0ec0..ad2e6c212 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-file-upload",
-  "version": "9.9.2",
+  "version": "9.9.3",
   "title": "jQuery File Upload",
   "description": "File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.",
   "keywords": [
diff --git a/js/jquery.fileupload.js b/js/jquery.fileupload.js
index e99f3091e..9819d10ec 100644
--- a/js/jquery.fileupload.js
+++ b/js/jquery.fileupload.js
@@ -1,5 +1,5 @@
 /*
- * jQuery File Upload Plugin 5.42.2
+ * jQuery File Upload Plugin 5.42.3
  * https://github.com/blueimp/jQuery-File-Upload
  *
  * Copyright 2010, Sebastian Tschan
@@ -1344,18 +1344,19 @@
         _initDataAttributes: function () {
             var that = this,
                 options = this.options,
-                clone = $(this.element[0].cloneNode(false)),
-                data = clone.data();
-            // Avoid memory leaks:
-            clone.remove();
+                data = this.element.data();
             // Initialize options set via HTML5 data-attributes:
             $.each(
-                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)) {
+                this.element[0].attributes,
+                function (index, attr) {
+                    var key = attr.name.toLowerCase(),
+                        value;
+                    if (/^data-/.test(key)) {
+                        // Convert hyphen-ated key to camelCase:
+                        key = key.slice(5).replace(/-[a-z]/g, function (str) {
+                            return str.charAt(1).toUpperCase();
+                        });
+                        value = data[key];
                         if (that._isRegExpOption(key, value)) {
                             value = that._getRegExp(value);
                         }
diff --git a/package.json b/package.json
index 436cf2575..5d2f65e3a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blueimp-file-upload",
-  "version": "9.9.2",
+  "version": "9.9.3",
   "title": "jQuery File Upload",
   "description": "File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.",
   "keywords": [