[Test coverage] Verify the `Content-Type` header on ActivityPub responses
aumetra opened this issue · comments
All endpoints that return ActivityPub entities should have their content type set to application/ld+json; profile="https://www.w3.org/ns/activitystreams" (using our ActivityPubJson responder)
Related to #388 (since we obviously want Kitsune instances to be able to federate with Kitsune instances)