Failed to load module script: The server responded with a non-JavaScript MIME type of "application/json". Strict MIME type checking is enforced for module scripts per HTML spec.

JavaScript
A simple workaround:

config.js

export default
{
  // my json here...
}
then...

import config from '../config.js'
does not allow import of existing .json files, but does a job.
Source

Also in JavaScript: