LoadingManager: Added itemError. See #7089.

src/loaders/ImageLoader.js

@@ -56,15 +56,13 @@ THREE.ImageLoader.prototype = {
 
 		}
 
-		if ( onError !== undefined ) {
+		image.addEventListener( 'error', function ( event ) {
 
-			image.addEventListener( 'error', function ( event ) {
+			if ( onError ) onError( event );
 
-				onError( event );
+			scope.manager.itemError( url );
 
-			}, false );
-
-		}
+		}, false );
 
 		if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;
 

src/loaders/LoadingManager.js

@@ -55,6 +55,16 @@ THREE.LoadingManager = function ( onLoad, onProgress, onError ) {
 
 	};
 
+	this.itemError = function ( url ) {
+
+		if ( scope.onError !== undefined ) {
+
+			scope.onError( url );
+
+		}
+
+	};
+
 };
 
 THREE.DefaultLoadingManager = new THREE.LoadingManager();

src/loaders/XHRLoader.js

@@ -57,15 +57,13 @@ THREE.XHRLoader.prototype = {
 
 		}
 
-		if ( onError !== undefined ) {
+		request.addEventListener( 'error', function ( event ) {
 
-			request.addEventListener( 'error', function ( event ) {
+			if ( onError ) onError( event );
 
-				onError( event );
+			scope.manager.itemError( url );
 
-			}, false );
-
-		}
+		}, false );
 
 		if ( this.crossOrigin !== undefined ) request.crossOrigin = this.crossOrigin;
 		if ( this.responseType !== undefined ) request.responseType = this.responseType;