Anyone have experience with Cesium on AWS s3?

I've loaded Cesium onto an AWS s3 bucket enabled for web hosting.

Cesium/index.html loads fine and all of the links work out-of-the-box except CesiumViewer and Sandcastle -- neither load beyond a landing page:

http://3dla.directory.s3-website-us-west-2.amazonaws.com/Cesium/index.html

Anyone have any thoughts as to what to check where? Is a CORS Configuration needed for the bucket? And what does it need to allow?

Looks like you forgot to upload the ThirdParty directory.

http://3dla.directory.s3-website-us-west-2.amazonaws.com/Cesium/ThirdParty/requirejs-2.1.20/require.js

404

That works for CesiumViewer -- thank you!

Still no luck with Sandcastle:

http://3dla.directory.s3-website-us-west-2.amazonaws.com/Cesium/Apps/Sandcastle/index.html

I was able to debug using the error message in the JavaScript Console. For reasons unknown, the upload to AWS s3 did not include every folder and file in the download.

Thank you Scott Hunter for the insight!