c.Headers[kubectlCommandHeader] = strings.Join(cmdStrs, " ")
	}
}

// CancelRequest is propagated to the Delegate RoundTripper within
// if the wrapped RoundTripper implements this function.
func (c *CommandHeaderRoundTripper) CancelRequest(req *http.Request) {
	type canceler interface {
		CancelRequest(*http.Request)
	}
	// If possible, call "CancelRequest" on the wrapped Delegate RoundTripper.
	if cr, ok := c.Delegate.(canceler); ok {

		currCmd = cmd
	}
	return currCmd
}

// Tests that the CancelRequest function is propogated to the wrapped Delegate
// RoundTripper; but only if the Delegate implements the CancelRequest function.
func TestCancelRequest(t *testing.T) {
	tests := map[string]struct {
		delegate  http.RoundTripper
		cancelled bool
	}{
		"CancelRequest propagated to delegate": {
			delegate:  &cancellableRoundTripper{},