What's the status of grpc both as client and server? I seem to recall reading somewhere that some features(trailing headers?) needed to call grpc as client were

What's the status of grpc both as client and server? I seem to recall reading somewhere that some features(trailing headers?) needed to call grpc as client were out of the fetch spec and thus would to be implemented. It's also not clear from this issue either. https://github.com/denoland/deno/issues/3326 https://github.com/denoland/deno/issues/3326