External youtube-dl-exec library crashes NR

[knolleary]

You are missing any error handling in the call to youtubeDlExec. It returns a Promise object, so you need to define a catch function:

youtubeDlExec(msg.payload, {dumpSingleJson: true}).then(output => {
    msg.payload = output;
    clearTimeout(myTimeout);
    node.send(msg);
    node.done();
}).catch(err => {
    // An error has been returned by the Promise.
    // Do something with it...
});