Merge pull request #7707 from RaananW/small-cdn-change

Playground - back to preview cdn

Playground/index.html

@@ -412,7 +412,7 @@
 
         <!-- jQuery -->
         <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
-        <script src="https://rawcdn.githack.com/jeromeetienne/jquery-qrcode/master/jquery.qrcode.min.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.qrcode/1.0/jquery.qrcode.min.js"></script>
 
         <!-- Main scripts -->
         <script src="/js/config_versions.js"></script>
@@ -433,8 +433,8 @@
         </script>
 
         <!-- Dependencies -->
-        <script src="https://rawcdn.githack.com/BabylonJS/Babylon.js/991ff1bafc4d8ad6d501e9354d70a5e2b2bd3ea2/dist/preview%20release/ammo.js"></script>
-        <script src="https://rawcdn.githack.com/BabylonJS/Babylon.js/54684912728536933561b5cf61ddb2aa9735d9f2/dist/preview%20release/earcut.min.js"></script>
+        <script src="https://preview.babylonjs.com/ammo.js"></script>
+        <script src="https://preview.babylonjs.com/earcut.min.js"></script>
         <script src="https://preview.babylonjs.com/recast.js"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/cannon.js/0.6.2/cannon.min.js"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/oimo/1.0.9/oimo.min.js"></script>

Playground/js/main.js

@@ -220,7 +220,7 @@ class Main {
     constructor(parent) {
         this.parent = parent;
 
-        if (typeof BABYLON !== 'undefined') {
+        if (typeof BABYLON !== 'undefined' && BABYLON.Engine) {
             BABYLON.Engine.ShadersRepository = "/src/Shaders/";
         }
         this.snippetV3Url = "https://snippet.babylonjs.com"