tunnel grpc using h2c

[jvassev]

Describe the feature request

It would be great if FRP can tunnel GRPC service with the http plugin.

With a grpc without tls you would get an error as GRPC required http2. Looks like you need to instruct the proxy to do h2c (for example traefik suggests this https://doc.traefik.io/traefik/user-guides/grpc/).

I can use tcp plugun but I would like to use http's vhost/domain option for simplicity.

Describe alternatives you've considered

No response

Affected area

• Docs
• Installation
• Performance and Scalability
• Security
• User Experience
• Test and Release
• Developer Infrastructure
• Client Plugin
• Server Plugin
• Extensions
• Others