def delete_cookie(self, key, path='/', domain=None):
        self.set_cookie(key, expires=0, max_age=0, path=path, domain=domain)
Delete a cookie.  Fails silently if key doesn't exist.
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/wrappers.py/BaseResponse.delete_cookie