def expireCookie(name, **kw):
    """Causes an HTTP cookie to be removed from the browser

        The response will include an HTTP header that will remove the cookie
        corresponding to "name" on the client, if one exists. This is
        accomplished by sending a new cookie with an expiration date
        that has already passed. Note that some clients require a path
        to be specified - this path must exactly match the path given
        when creating the cookie. The path can be specified as a keyword
        argument.
        If the value of a keyword argument is None, it will be ignored.
        """
