Add a fix for es-module-shims

demos/hello-three/demo.js

     });
 }
 
-document.addEventListener('DOMContentLoaded', main);
+if(document.readyState == 'loading')
+    document.addEventListener('DOMContentLoaded', main);
+else
+    main(); // es-module-shims

demos/hello-three/index.html

         <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1, maximum-scale=1">
         <title>encantar.js WebAR demo with three.js</title>
         <link href="../assets/demo.css" rel="stylesheet">
-        <script async crossorigin src="https://cdn.jsdelivr.net/npm/es-module-shims@1.10.1/dist/es-module-shims.min.js"></script>
+        <script async src="https://cdn.jsdelivr.net/npm/es-module-shims@1.10.1/dist/es-module-shims.js"></script>
         <script type="importmap">
         {
             "imports": {

demos/hello-three/video.html

         <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1, maximum-scale=1">
         <title>encantar.js WebAR demo with three.js</title>
         <link href="../assets/demo.css" rel="stylesheet">
-        <script async crossorigin src="https://cdn.jsdelivr.net/npm/es-module-shims@1.10.1/dist/es-module-shims.min.js"></script>
+        <script async src="https://cdn.jsdelivr.net/npm/es-module-shims@1.10.1/dist/es-module-shims.js"></script>
         <script type="importmap">
         {
             "imports": {