if (v != NULL && asprintf(&cookie, cookie_setter, v) > 0) {
MHD_add_response_header(response, MHD_HTTP_HEADER_SET_COOKIE, cookie);
free(cookie);
if (v != NULL && asprintf(&cookie, cookie_setter, v) > 0) {
MHD_add_response_header(response, MHD_HTTP_HEADER_SET_COOKIE, cookie);
free(cookie);