diff --git a/api/js/etemplate/et2_core_arrayMgr.js b/api/js/etemplate/et2_core_arrayMgr.js
index 8661fa316d..818a9c4567 100644
--- a/api/js/etemplate/et2_core_arrayMgr.js
+++ b/api/js/etemplate/et2_core_arrayMgr.js
@@ -121,6 +121,8 @@ var et2_arrayMgr = /** @class */ (function () {
      * @return {string[]}
      */
     et2_arrayMgr.prototype.explodeKey = function (_key) {
+        if (!_key || _key.trim() === "")
+            return [];
         // Parse the given key by removing the "]"-chars and splitting at "["
         var indexes = [_key];
         if (typeof _key === "string") {
diff --git a/api/js/etemplate/et2_core_arrayMgr.ts b/api/js/etemplate/et2_core_arrayMgr.ts
index 38a191db97..17adc7e204 100644
--- a/api/js/etemplate/et2_core_arrayMgr.ts
+++ b/api/js/etemplate/et2_core_arrayMgr.ts
@@ -125,6 +125,8 @@ export class et2_arrayMgr
 	 * @return {string[]}
 	 */
 	explodeKey(_key: string): string[] {
+		if(!_key || _key.trim() === "") return [];
+
 		// Parse the given key by removing the "]"-chars and splitting at "["
 		let indexes = [_key];