Calling HTTP Node server inside HTTPS instance, SSL error

I’m trying to connect to a socket.io inside a Node server from a React client.

Both, the React client and the instance that the Node server is located (it’s a microservice, there’s also a Java container running there, both within a separated docker container) have https protocols. React client is inside a s3 bucket.

The thing is, Node server is HTTP only, has no certificate, and it’s causing the request to the socket.io to fail.

The connection happens without any trouble inside de develop EC2, which is not HTTPS, also running normally with localhost.

Cors are enabled.

Is there a way, without having to turn Node serve into HTTPS, to make this requests not return SSL erros?

If not, what is the easiest way to turn it into a HTTPS server to run along with the Java server?

Thanks a lot!

Source: Docker Questions