opened 08:24PM - 19 Jul 19 UTC
closed 10:05PM - 04 Oct 19 UTC
Since [this last update](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS/…Errors/CORSRequestNotHttp?utm_source=devtools&utm_medium=firefox-cors-errors&utm_campaign=default), firefox now is forcing CORS even for local files. Because of that, now we may need an http server to serve the sketch's `index.html`