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/nextjs

SDK Version

8.33.1

Framework Version

No response

Link to Sentry event

https://dev-curumas.sentry.io/issues/5968125190/?project=5591101&query=is%3Aunresolved%20issue.priority%3A%5Bhigh%2C%20medium%5D&referrer=issue-stream&statsPeriod=7d&stream_index=0

Reproduction Example/SDK Setup

No response

Steps to Reproduce

Repro: next-test-sentry-main.zip
Follow the steps in the readme:

1. npm install
2. update DSN in the sentry config files
3. npm run dev
4. send a POST request to http://localhost:3000/api/test

Expected Result

The event in sentry has the POST request information including body.

Actual Result

The request in the Sentry event is treated as a GET request, even though the event is associated with the transaction POST /api/test (http.server)