413 Payload Too Large Error - Request Size Limit

1

Issue:

  • My frontend sends POST requests with base64-encoded images (~130kB base64)
  • Requests work fine locally but fail on Render with 413 error
  • The error occurs before reaching my Express application (no logs from my app)

Current Configuration:

  • My Express app has express.json({ limit: '50mb' })
  1. What is the default request size limit for Render web services?
  2. Are there any proxy/CDN layers (like Cloudflare) that might be blocking large requests?

Thanks