Update

Author: gkjohnson

src/core/renderer/API.md

@@ -85,7 +85,7 @@ Base class for all 3D Tiles content loaders. Handles fetching and parsing tile c
 ### .fetchOptions
 
 ```js
-fetchOptions: Object
+fetchOptions: Object = {}
 ```
 
 Options passed to `fetch` when loading tile content.
@@ -94,7 +94,7 @@ Options passed to `fetch` when loading tile content.
 ### .workingPath
 
 ```js
-workingPath: string
+workingPath: string = ''
 ```
 
 Base URL used to resolve relative external URLs.

src/core/renderer/loaders/LoaderBase.js

@@ -10,12 +10,14 @@ export class LoaderBase {
 		/**
 		 * Options passed to `fetch` when loading tile content.
 		 * @type {Object}
+		 * @default {}
 		 */
 		this.fetchOptions = {};
 
 		/**
 		 * Base URL used to resolve relative external URLs.
 		 * @type {string}
+		 * @default ''
 		 */
 		this.workingPath = '';