Facebook Graph API rate limiting Headers issue

Question

Facebook clearly mentions it returns Rate limiting headers ( here )

But I can't see the headers in the response

Endpoint : https://graph.facebook.com/v2.9/{post_id}/reactions?summary=true&limit=0

Headers :

The request is made using an app access_token if I use a page access token I can see the headers, but using an app access token I can't.

Am I missing something?

Answer 1

I have some experience with Facebook's Graph API. Individual applications only start to be rate limited by Facebook once they start getting close to the rate restrictions on a regular basis. You won't see the headers until then. And not all endpoints are subject to rate limiting. It's a kind web service!