Client refuses to connect over port 80

[SVS-bigj]

When using the Yellowstone gRPC Typescript client to connect over port 80, I get a ECONNREFUSED error with IP address of the reverse proxy it is connected to on port 443.

However changing the port to anything other than 80 seems to work fine and connect using the correct port.

Here is how I connect in my client program.

This does NOT work and gives me the error in the above screenshot trying to connect over port 443.

This DOES work with my reverse proxy listening on port 8888

It probably goes without saying that it connects fine when SSL is enabled as that natively runs on port 443.