cookies.go
func (c *Cookies) Delete(name string) {
	ck := http.Cookie{
		Name:  name,
		Value: "v",
		// Setting a time in the distant past, like the unix epoch, removes the cookie,
		// since it has long expired.
		Expires: time.Unix(0, 0),
	}

	http.SetCookie(c.res, &ck)
}
func (c *Cookies) Delete(name string) {
	ck := http.Cookie{
		Name:  name,
		Value: "v",
		// Setting a time in the distant past, like the unix epoch, removes the cookie,
		// since it has long expired.
		Expires: time.Unix(0, 0),
	}

	http.SetCookie(c.res, &ck)
}
// Delete sets a header that tells the browser to remove the cookie with the given name.