serialize-killer
will make your objects unserializable.
You might want to use this if you have sensitive data that you don't want to accidentally get leaked over the wire.
yarn add serialize-killer
npm install serialize-killer
import { unserializable } from 'serialize-killer';
JSON.stringify({
sanity: unserializable(),
ssn: '555-55-5555',
creditCard: '4242 4242 4242 4242',
});