Data Race with Clone

[svperfecta]

Hey all - I suspect I'm missing something, but I'm wondering why this causes a data race within the middleware chain every time I call send several times in a row. I would have thought Clone would have made a complete copy of the request.

type Sender struct {
	Request *gentleman.Request
}

// New instantiates a new Notifier
func New(url string, key string) (*Sender, error) {
	req := gentleman.NewRequest()
	req.Method("POST")
	req.URL(url)
	req.AddHeader("Content-Type", "application/json")
	req.Use(timeout.Request(2 * time.Second))
	req.Use(timeout.Dial(5*time.Second, 30*time.Second))

	return &Sender{
		Request: req,
	}, nil
}

func (n *Sender) Send() {
	body, _ := "foo"

	go func(req *gentleman.Request, body string) {
		req.BodyString(body).Send()
	}(n.Request.Clone(), body)
}