var net/http/internal/http2.clientPreface

3 uses

	net/http/internal/http2 (current package)
		http2.go#L86: 	clientPreface = []byte(ClientPreface)
		server.go#L975: 		} else if !bytes.Equal(buf, clientPreface) {
		transport.go#L685: 	cc.bw.Write(clientPreface)