I have a backend written in Go. Everything is working fine and the call from POSTMAN is being delivered, but suddenly I can't get the React app to call this server because I get the error:

Proxy error: Could not proxy request /login from localhost:3000 to http://localhost:8080 (ECONNREFUSED).

My Go server code:

log.Fatal(http.ListenAndServe(fmt.Sprintf("localhost:8080"), api.router))

The package.json for the React application looks like this:

"proxy": "http://localhost:8080"

I know I can bind all interfaces in Go like this:

log.Fatal(http.ListenAndServe(fmt.Sprintf(":8080"), api.router))

But Mac OS asks me to allow this connection, but I can't do it because I'm not the administrator of the computer

I could do this via co-design, but I don't have any identity at the moment, so generating the private key and adding it to the keychain would also take some time

Is there any easy way to bypass this?