Response metadata control no longer works.

[SteveIves]

It should be possible to suppress the return of OData metadata in a response by modifying the requests Accept header like this:

Accept: application/json; odata.metadata=none

or to extend the metadata like this:

Accept: application/json; odata.metadata=full

We document this here https://github.com/Synergex/HarmonyCore/wiki/Suppressing-OData-Metadata

Used to work in earlier builds, currently broken.