CORS Policy Blocks XML Request

```kid.html:1 Access to XMLHttpRequest at 'file:///Users/patrickwilkie/Documents/Code/Javascript/bodyapps-viz/models/skinned/childconfig.json' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, brave, chrome-untrusted, https.```