Deployment ID header for data routes?

[moltar]

Summary

Sorry, I am rather new to Next.js and not a frontend dev, just trying to fix the infra.

Am I supposed to see a Deployment ID header for the routes of this format:

https://www.example.com/_next/data/${BUILD_ID}/signup.json

I'm setting the NEXT_DEPLOYMENT_ID header at build time and runtime.

And I see ?dpl=... gets added to static assets.

But I don't see them being added to these data calls.

Additional information

No response

Example

No response