ES6 modules in local files - The server responded with a non-JavaScript MIME type

Question

I get this error:

Failed to load module script: The server responded with a non-JavaScript MIME type of \"\". Strict MIME type checking is enforced fo

Answer 1

A simple fix for me that wasn't listed here was this:

I had an import statement bringing an object from a different file, which I did via this line:

import { Cell } from './modules/Cell';

What broke the code and caused the MIME type error was not having .js appended to the end of ./modules/Cell.

The updated line fixed my problem:

import { Cell } from './modules/Cell.js';