diff --git a/src/utils/Util.js b/src/utils/Util.js
index a6e55627..61938ddc 100644
--- a/src/utils/Util.js
+++ b/src/utils/Util.js
@@ -9,6 +9,10 @@ var Util = {
     },
 
     getPostDelimiter: function (value, delimiter, delimiters) {
+        if (!value) {
+            return '';
+        }
+
         // single delimiter
         if (delimiters.length === 0) {
             return value.slice(-delimiter.length) === delimiter ? delimiter : '';