When I invoke "scene.debugLayer.show()", using the current nightly BJS builds, as soon as the inspector bundle loads and runs I get an error like: Exception: ReferenceError: __extends is not defined at http://www.babylonjs.com/babylon.inspector.bundle.js:408:12893 at INSPECTOR (http://www.babylonjs.com/babylon.inspector.bundle.js:408:13544) at Object.<anonymous> (http://www.babylonjs.com/babylon.inspector.bundle.js:408:13575) at __webpack_require__ (http://www.babylonjs.com/babylon