DracoLoader: Fix not calling `onError()`. (#27306)

* fix onError load

* onError

* LinearSRGBColorSpace instead of undefined

* default onError = () => {}; call onError to cleanup code;

examples/jsm/loaders/DRACOLoader.js

@@ -82,13 +82,14 @@ class DRACOLoader extends Loader {
 
 	}
 
-	parse( buffer, onLoad, onError ) {
+
+	parse( buffer, onLoad, onError = ()=>{} ) {
 
 		this.decodeDracoFile( buffer, onLoad, null, null, SRGBColorSpace ).catch( onError );
 
 	}
 
-	decodeDracoFile( buffer, callback, attributeIDs, attributeTypes, vertexColorSpace = LinearSRGBColorSpace ) {
+	decodeDracoFile( buffer, callback, attributeIDs, attributeTypes, vertexColorSpace = LinearSRGBColorSpace, onError = () => {} ) {
 
 		const taskConfig = {
 			attributeIDs: attributeIDs || this.defaultAttributeIDs,
@@ -97,7 +98,7 @@ class DRACOLoader extends Loader {
 			vertexColorSpace: vertexColorSpace,
 		};
 
-		return this.decodeGeometry( buffer, taskConfig ).then( callback );
+		return this.decodeGeometry( buffer, taskConfig ).then( callback ).catch( onError );
 
 	}
 
@@ -156,7 +157,12 @@ class DRACOLoader extends Loader {
 				} );
 
 			} )
-			.then( ( message ) => this._createGeometry( message.geometry ) );
+			.then( ( message ) => this._createGeometry( message.geometry ) )
+			.catch( ( error ) => {
+
+				throw new Error( error );
+
+			} );
 
 		// Remove task from the task list.
 		// Note: replaced '.finally()' with '.catch().then()' block - iOS 11 support (#19416)

examples/jsm/loaders/GLTFLoader.js

@@ -1923,7 +1923,7 @@ class GLTFDracoMeshCompressionExtension {
 
 		return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {
 
-			return new Promise( function ( resolve ) {
+			return new Promise( function ( resolve, reject ) {
 
 				dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {
 
@@ -1938,7 +1938,7 @@ class GLTFDracoMeshCompressionExtension {
 
 					resolve( geometry );
 
-				}, threeAttributeMap, attributeTypeMap );
+				}, threeAttributeMap, attributeTypeMap, LinearSRGBColorSpace, reject );
 
 			} );