Supergraph / Subgraph header propagation not working #8489
Description
Describe the bug
According to the documentation response header propagation is possible with Rhai scripts, I would imagine is the same case with native plugins.
95% of traffic that is handled by our router instances are coming in batched GraphQL requests. We have a use case where we need to propagate headers from the supergraph service; lets say the send the operation id back to the client, and the subgraph service; lets say the set-cookie header.
Currently, the Context object that is created in the router service is cloned to downstream services, supergraph_service, subgraph_service, which makes impossible to "collect" data from downstream services of the router service
To Reproduce
Expected behavior
I should be able to collect data from downstream services of router_service