exec via ssh uncaughtException

[rafipiccolo]

let Docker = require('dockerode');
let docker = new Docker({
    protocol: 'ssh',
    host: "192.111.111.111", // put any unreachable ip address
    port: 22,
    username: 'root',
    sshOptions: {
        privateKey: require('fs').readFileSync('/root/.ssh/id_rsa'),
    },
});
let containerid = 'xxx';

let container = docker.getContainer(containerid);
let params = {
    Cmd: ['sh', '-c', 'ls'],
    AttachStdin: false,
    AttachStdout: true,
    AttachStderr: true,
    Tty: false,
    Env: [],
};
console.log('exec');
container.exec(params, (err, exec) => {
    // never reached
    console.log('exec done');
});

it works on dev machine, but not on the other. It is related to networking but the fact is i get an uncaughtException. Is it normal ? console.log('exec done'); is never called. how can i handle the error properly ?

the actual error :

uncaughtException Timed out while waiting for handshake {
	"err": {
	    "level": "client-timeout",
	    "code": null,
	    "name": "Error",
	    "message": "Timed out while waiting for handshake",
	    "detail": null,
	    "stack": [
	        "Error: Timed out while waiting for handshake",
	        "    at Timeout._onTimeout (/usr/app/node_modules/ssh2/lib/client.js:695:19)",
	        "    at listOnTimeout (node:internal/timers:557:17)",
	        "    at processTimers (node:internal/timers:500:7)"
	    ],
	    "err": null
	}
}