I am trying to publish my game https://thebigswede.itch.io/earth-defense-force-nasa which I created using the three.js library. I packaged my application using vite build to create a standalone folder containing all the game assets and dependencies, which I then compressed and uploaded to the game page.

However, when the game loads the only thing that appears is a grey screen. Inspecting the page shows that the js and css files failed to load with the error code "Failed to load resource: the server responded with a status of 403 ()"

The issue has been resolved. The issue was caused by Vite, which is configured by default to change the path to find the javascript and css files to a static path instead of a relative one. Changing the build settings to produce relative paths instead fixes the issue.