Project: soothing-joy (saas-landing)

Service: voice-agent-production

Issue: ALL HTTP requests return 502 "Application failed to respond"

Details:

• Even a minimal Express.js server fails with 502
• Server code works perfectly locally with node server.js
• Build logs show Docker image builds successfully
• Container logs show application starts ("Email Dashboard → http://localhost:3000/email")
• But all incoming requests return 502
• Error response header shows: x-railway-fallback: true

Diagnostics tried:

• Removed memory limit (was --max-old-space-size=460)
• Changed binding to 0.0.0.0
• Tested with minimal Express server (just /health endpoint)
• All still return 502

GitHub repo: https://github.com/anthropics/claude-code

Questions for Railway team:

1. What causes silent container failures even for minimal servers?
2. Can you provide actual container stdout/stderr logs?
3. Any known issues with Node.js 20-alpine on Railway?

The application code is correct - this is a Railway environment issue that requires actual container logs to debug.