My Next.js application running on Railway is experiencing 502 Bad Gateway errors when accessed through Cloudflare.

• Issue: Cloudflare returns '502 Bad Gateway' with error 'failed to forward request to upstream: connection refused'
• My app works fine on the Railway-provided URL (noshu-production.up.railway.app)
• I have set up CNAME records in Cloudflare.
• My app is running on port 3000 with a custom domain (nosh.network)
• Railway shows 'Cloudflare proxy detected' in domain settings

Could this be a configuration issue on Railway's side with handling Cloudflare proxied connections?