Description:

• Service: illustrious-tranquility (diacora-api)

• Railway Domain: ✅ WORKING

  https://illustrious-tranquility-production-33d7.up.railway.app/health

  Response: {"status":"ok","database":"configured"}

• Custom Domain: ❌ 502 BAD GATEWAY

  https://api.diacorahealth.com/health

  Error: Application failed to respond

• Port: 8080 (correct)

• Healthcheck: /health (200 OK)

• Database: Configured ✅

• Region: sfo (1 replica)

Problem:

When custom domain is added, it returns 502 Bad Gateway.

Railway domain works perfectly but custom domain fails.

This happens consistently - not a temporary issue.

Steps to Reproduce:

1. Add custom domain api.diacorahealth.com:8080
2. Try to access https://api.diacorahealth.com/health
3. Get 502 error

Expected:

Custom domain should work like Railway domain.

Actual:

502 Bad Gateway error every time.