Close prompt immediately after click ok instead of wait ajax request

Author: Nazar65

lib/web/mage/adminhtml/browser.js

@@ -376,7 +376,7 @@ define([
                      * @param {*} folderName
                      */
                     confirm: function (folderName) {
-                        return $.ajax({
+                        $.ajax({
                             url: self.options.newFolderUrl,
                             dataType: 'json',
                             data: {
@@ -399,6 +399,8 @@ define([
                                 );
                             }
                         }, this));
+
+                        return true;
                     }
                 }
             });