javascript modules and CORS

If you have node installed I would recommend installing http-server package. You'll be up and running in no time! Fixed my problem and I can run my application in chrome using the server.

Many browsers do not allow you to access files on the local filesystem with JavaScript (even if the HTML document is also on the local filesystem).

This extends to loading JavaScript modules.

Install a webserver and use that (with a URL like http://localhost/) for testing.