},
		WroteHeaders: func() {
			logf("WroteHeaders")
		},
		Wait100Continue: func() { logf("Wait100Continue") },
		Got100Continue:  func() { logf("Got100Continue") },
		WroteRequest: func(e httptrace.WroteRequestInfo) {
			logf("WroteRequest: %+v", e)
			gotWroteReqEvent <- struct{}{}
		},
	}
	if mode == http2Mode {
		trace.TLSHandshakeStart = func() { logf("tls handshake start") }