could someone help me please? i have got problems with ual-anchor what i do:

cd /public_html
yarn add ual-reactjs-renderer
yarn add ual-anchor

index.html

<script  type="module" src="./anchor.js">

anchor.js

import { Anchor } from './ual-anchor';
import { UALProvider, withUAL } from './ual-reactjs-renderer';

and got

was blocked because of a disallowed mime type (“text/html”).

what is wrong?