Google oauth redirect -- nginx 404

I've implemented google oauth, but redirects are broken due to the way the proxy is setup on Railway. Is there any way to fix this? For the record, I am not using a custom domain, only the one exposed by Railway --> https://hivemind-client-production.up.railway.app/ the interesting thing to me is that I cannot navigate to any path/subpage via the browser's address bar, although I can navigate from the page itself. I.e., if I click on the about tab, it navigates to https://hivemind-client-production.up.railway.app/about, but if i were to enter this address in the browsers URL bar, i get the same nginx error... 🤔