bool IsDetachableResourceType(ResourceType type) {
  switch (type) {
    case RESOURCE_TYPE_PREFETCH:
    case RESOURCE_TYPE_PING:
    case RESOURCE_TYPE_CSP_REPORT:
      return true;
    default:
      return false;
  }
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.