GET https://api4.windy.com/v15.16.1/plugins/menu.js 404 (Not Found)

Refused to execute script from 'https://api4.windy.com/v15.16.1/plugins/menu.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

I am seeing this same error message as well.

I agree with the documentation, it appears that the details for the overlays are not listed. I would expect to see something more like the options page. Even then though I feel that the options page is lacking even more details on each option. It could be solved by simply including a one-liner that would be an example for each listed item.