Is there an entrypoint config option to disable HTTP2?
If my reading of https://github.com/containous/traefik/blob/v1.7/server/server.go#L444 is correct, it looks to be hardcoded in.
@coderanger you are correct.
HTTP2 capability is hard-coded in, but it is negotiated. If your client only supports HTTP 1.1, then it will use that instead.
But yes, HTTP2 will be used if available.