CHANGELOG.md

 
+<a name="v3.39.1"></a>
+## [v3.39.1] - 2023-04-03
+### Bug Fixes
+- this[attributeObserverSymbol] = {}; should defined before
+
+
 <a name="v3.39.0"></a>
 ## [v3.39.0] - 2023-04-03
 ### Add Features
@@ -551,6 +557,7 @@
 <a name="1.8.0"></a>
 ## 1.8.0 - 2021-08-15
 
+[v3.39.1]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.39.0...v3.39.1
 [v3.39.0]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.38.1...v3.39.0
 [v3.38.1]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.38.0...v3.38.1
 [v3.38.0]: https://gitlab.schukai.com/oss/libraries/javascript/monster/compare/v3.37.0...v3.38.0

application/package.json

 {
   "name": "@schukai/monster",
-  "version": "3.38.1",
+  "version": "3.39.0",
   "description": "Monster is a simple library for creating fast, robust and lightweight websites.",
   "keywords": [
     "framework",

application/source/dom/customelement.mjs

@@ -199,10 +199,10 @@ class CustomElement extends HTMLElement {
     constructor() {
         super();
 
+        this[attributeObserverSymbol] = {};
         this[internalSymbol] = new ProxyObserver({
             options: initOptionsFromAttributes(this, extend({}, this.defaults)),
         });
-        this[attributeObserverSymbol] = {};
         initOptionObserver.call(this);
         this[initMethodSymbol]();
     }

application/source/types/version.mjs

@@ -142,7 +142,7 @@ function getMonsterVersion() {
     }
 
     /** don't touch, replaced by make with package.json version */
-    monsterVersion = new Version("3.38.1");
+    monsterVersion = new Version("3.39.0");
 
     return monsterVersion;
 }

development/package.json

 {
   "name": "monster",
-  "version": "3.38.1",
+  "version": "3.39.0",
   "description": "monster",
   "repository": {
     "type": "git",

development/test/cases/monster.mjs

@@ -7,7 +7,7 @@ describe('Monster', function () {
         let monsterVersion
 
         /** don´t touch, replaced by make with package.json version */
-        monsterVersion = new Version("3.38.1")
+        monsterVersion = new Version("3.39.0")
 
         let m = getMonsterVersion();
 

release.json

-{"version":"3.39.0"}
+{"version":"3.39.1"}