Service Workers (For web)
So I made a html, js, css repl and I tried loading Monogatari but I end up getting this.
Service Workers are not available in this browser or have been disabled in the engine configuration. Service Workers are available only when serving your files through a server, once you upload your game this warning will go away. You can also try using a simple server like this one for development: https://chrome.google.com/webstore/detail/web-server-for-chrome/ofhbbkphhbklhfoeikjpcbhemlocgigb/
Can you please give us a link to your repl? Also can you please provide us with the browser you're using? Thanks