var golang.org/x/net/http2.clientPreface

3 uses

	golang.org/x/net/http2 (current package)
		http2.go#L74: 	clientPreface = []byte(ClientPreface)
		server.go#L1060: 		} else if !bytes.Equal(buf, clientPreface) {
		transport.go#L807: 	cc.bw.Write(clientPreface)

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)