How to solve the problem with CORS?

Question

Node.js

Hello everyone, there is a site written on the MERN stack, I posted it on the heroku service.
An error appears related to the cors policy, well, I connected the cors module, configured it

const corsOptions = {
  "origin": "*",
  "methods": "GET,HEAD,PUT,PATCH,POST,DELETE",
  "preflightContinue": false,
  "optionsSuccessStatus": 204,
  "allowedHeaders": ["Content-Type"]
}
app.use(cors(corsOptions))

the error still does not disappear, well, in general, by trial and error, I noticed that due to the bcrypt module this problem occurs with the cors policy, as soon as I do not connect it, everything works as it should.
I thought that maybe because of the versions of node and bcrypt does not work, but according to the versions everything is fine
In general, it doesn’t work any more

I would be very grateful for the help