Hi!
I updated version few minutes ago and now I have this error on my console (without change anything on my code base).
The error is:

This is how I create client.
client = mqtt.connect('wss://mqtt.crystal.io:12346', {
username: ...,
password: ...,
clientId: ...,
reconnectPeriod: ...,
rejectUnauthorized: ...
});
Thanks to your work.
From 🇮🇹