diff --git a/lib/recore/recore.umd.js b/lib/recore/recore.umd.js
index 62d777a..31a6674 100644
--- a/lib/recore/recore.umd.js
+++ b/lib/recore/recore.umd.js
@@ -1048,7 +1048,7 @@ function isURLSearchParams(val) {
 
 
 function trim(str) {
-  return str.replace(/^\s*/, '').replace(/\s*$/, '');
+  return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
 }
 /**
  * Determine if we're running in a standard browser environment
@@ -1698,19 +1698,19 @@ module.exports = _typeof;
 /* unused harmony export __makeTemplateObject */
 /* unused harmony export __importStar */
 /* unused harmony export __importDefault */
-/*! *****************************************************************************
-Copyright (c) Microsoft Corporation. All rights reserved.
-Licensed under the Apache License, Version 2.0 (the "License"); you may not use
-this file except in compliance with the License. You may obtain a copy of the
-License at http://www.apache.org/licenses/LICENSE-2.0
-
-THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
-MERCHANTABLITY OR NON-INFRINGEMENT.
-
-See the Apache Version 2.0 License for specific language governing permissions
-and limitations under the License.
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABLITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
 ***************************************************************************** */
 
 /* global Reflect, Promise */