app/assets/javascripts/fe/jquery.html5_upload.js in fe-2.1.2 vs app/assets/javascripts/fe/jquery.html5_upload.js in fe-2.1.3

@@ -8,10 +8,10 @@
         }
         function get_file_size(file) {
             return file.size || file.fileSize;
         }
         let available_events = ['onStart', 'onStartOne', 'onProgress', 'onFinishOne', 'onFinish', 'onError'];
-        let options = $.extend({
+        options = $.extend({
             onStart: function(event, total) {
                 return true;
             },
             onStartOne: function(event, name, number, total) {
                 return true;