Weird console error prevents app to load

[robinandeer]

I've noticed an error from time to time that seems to be resolved after a page refresh. But every not and again, futuhours doesn't load with the following errors in the JS console (Safari macOS 10.15):

Did not parse stylesheet at 'https://hours.app.futurice.com/static/css/main.17efc6ad.chunk.css' because non CSS MIME types are not allowed in strict mode.
Refused to execute https://hours.app.futurice.com/static/js/runtime~main.cca692ed.js as script because "X-Content-Type: nosniff" was given and its Content-Type is not a script MIME type.

Not a deal-breaker but might be worth checking out if it's a quick fix