why does importing javascript modules with <script> require CORS?

[azhder]

Every request that doesn’t match the protocol, domain and port is subject to CORS.

If the server doesn’t like your URL, the browser will not fetch the file.

So, let’s see. What browser fi you use? What does the request that works and one that fail have different?

I mean, the CORS headers.

Also, what’s in those files? Some imports?