Implement manager.resolveResourceURL()

src/loaders/FileLoader.js

@@ -19,6 +19,8 @@ Object.assign( FileLoader.prototype, {
 
 		if ( this.path !== undefined ) url = this.path + url;
 
+		url = this.manager.resolveResourceURL( url );
+
 		var scope = this;
 
 		var cached = Cache.get( url );

src/loaders/ImageLoader.js

@@ -22,6 +22,8 @@ Object.assign( ImageLoader.prototype, {
 
 		if ( this.path !== undefined ) url = this.path + url;
 
+		url = this.manager.resolveResourceURL( url );
+
 		var scope = this;
 
 		var cached = Cache.get( url );

src/loaders/LoadingManager.js

@@ -13,6 +13,8 @@ function LoadingManager( onLoad, onProgress, onError ) {
 	this.onProgress = onProgress;
 	this.onError = onError;
 
+	this.resourceTransform = undefined;
+
 	this.itemStart = function ( url ) {
 
 		itemsTotal ++;
@@ -65,6 +67,24 @@ function LoadingManager( onLoad, onProgress, onError ) {
 
 	};
 
+	this.resolveResourceURL = function ( url ) {
+
+		if ( this.resourceTransform ) {
+
+			return this.resourceTransform( url );
+
+		}
+
+		return url;
+
+	};
+
+	this.setResourceTransform = function ( transform ) {
+
+		this.resourceTransform = transform;
+
+	};
+
 }
 
 var DefaultLoadingManager = new LoadingManager();