BufferGeometryLoader: Use internal object instead of relying on self. See #7787.

src/loaders/BufferGeometryLoader.js

@@ -31,9 +31,21 @@ THREE.BufferGeometryLoader.prototype = {
 
 		var index = json.data.index;
 
+		var TYPED_ARRAYS = {
+			'Int8Array': Int8Array,
+			'Uint8Array': Uint8Array,
+			'Uint8ClampedArray': Uint8ClampedArray,
+			'Int16Array': Int16Array,
+			'Uint16Array': Uint16Array,
+			'Int32Array': Int32Array,
+			'Uint32Array': Uint32Array,
+			'Float32Array': Float32Array,
+			'Float64Array': Float64Array
+		};
+
 		if ( index !== undefined ) {
 
-			var typedArray = new self[ index.type ]( index.array );
+			var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
 			geometry.setIndex( new THREE.BufferAttribute( typedArray, 1 ) );
 
 		}
@@ -43,7 +55,7 @@ THREE.BufferGeometryLoader.prototype = {
 		for ( var key in attributes ) {
 
 			var attribute = attributes[ key ];
-			var typedArray = new self[ attribute.type ]( attribute.array );
+			var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
 
 			geometry.addAttribute( key, new THREE.BufferAttribute( typedArray, attribute.itemSize ) );