So I have noticed that glitch redirects the generated static site to root when the file for the path doesn’t exist, but I don’t want this behavior, I want to display a 404 page when the url doesn’t exist, and it is being an issue, since the path I have doesn’t correspond to an actual file, since I use react-router.
While I couldn’t make a working solution for a static site (i’m sure there’s a way and you can email firstname.lastname@example.org to figure it out), I did find this very interesting forum post on how to convert your static site to a server project (and get the custom 404 working).
There are some downsides such as no more 24/7 uptime but it’s the only solution I could find. I hope this helps. Let me know if you figure something else out, I’d love to hear it!