JAVASCRIPT

failed to load module script: expected a javascript module script but the server responded with a mime type of "text/html"

Change your script from:
<script type="text/html" src="main.js"></script>
to:
<script type="module" src="main.js"></script>

expected a javascript module script but the server responded with a mime type of "text/html"

Might be a CORS issue

failed to load module script: expected a javascript module script but the server responded with a mime type of "text/html". strict mime type checking is enforced for module scripts per html spec.

const varName = require('module name');

Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of "text/html". Strict MIME type checking is enforced for module scripts per HTML spec.

// CDN address is supposed to be a file, or raw text

Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of "text/html". Strict MIME type checking is enforced for module scripts per HTML spec.

ng build --prod --base-href yoursubfolder

failed to load module script: expected a javascript module script but the server responded with a mime type of "". strict mime type checking is enforced for module scripts per html spec.

var ga = ga