Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/node - fastify

SDK Version

9.29.0

Framework Version

No response

Link to Sentry event

No response

Reproduction Example/SDK Setup

No response

Steps to Reproduce

1. Create a Fastify server with trustProxy set to true running behind a reverse proxy passing the X-Forwarded-Proto header set to https and the X-Forwarded-Host header set to example.com
2. Log an event

Expected Result

The event URL is https://example.com/

Actual Result

The event URL is http://localhost:3000/