workermain.js:1 Refused to execute script from 'http://localhost:8000/scripts/c3runtime.js' because its MIME type ('text/plain') is not executable.
workermain.js:1 [C3 runtime] Failed to load all engine scripts in worker: DOMException: Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at 'http://localhost:8000/scripts/c3runtime.js' failed to load.
at a (http://localhost:8000/workermain.js:1:475)
That's the error on the console and the screen shows black.
Google Chrome Version: Version 76.0.3809.132 (Official Build) (64-bit)
Firefox Version: 68.0.2 (64-bit)
Not using any strange extension, only uBlock on BOTH browsers.
Serving the files using python http.server:
python -m http.server 8000 --bind 127.0.0.1