How to use Azure Frontdoor with gRPC?

Question

Azure Frontdoor is supporting HTTP/2 without any excludes, based on docs. But how to configure FD?

I created a grpc container on Azure Container Instances, it works fine. If I put the FD in front of the container, I always get TCP Read errors.

REST works fine the same way. Did I miss something?

Answer 1

This won't work currently.

There is a note in the docs:

HTTP/2 protocol support is available only for requests from clients to Front Door. The communication from Front Door to back ends in the back-end pool happens over HTTP/1.1.