I'm encountering a challenge integrating Mercado Pago Webhooks on Railway. Their validation process requires specific headers, but some of these headers are being overwritten by Railway's infrastructure.

My API is built with NestJS, and everything functions correctly when tested in other environments. I've pinpointed that Railway is modifying the X-Request-Id header, which is crucial for validating webhook authenticity (see: https://www.mercadopago.com.br/developers/en/docs/your-integrations/notifications/webhooks#bookmark_2._validate_notification_origin)

Is there a way to configure Railway to preserve these headers or any workarounds to ensure successful Mercado Pago webhook integration?