**Hello

Here is my code that generates the following error message in my browser console. Thanks very much to help me !**

The code :

MQTT
-->

Connexion MQTT :

// Create a client instance
client = new Paho.MQTT.Client("b37.mqtt.one", 8083,"client_id");

// set callback handlers
client.onConnectionLost = onConnectionLost;
client.onMessageArrived = onMessageArrived;
var options = {
//timeout: 3,
useSSL: true,
userName: "260fqs693",
password: "469efgijsu",
onSuccess:onConnect,
onFailure:doFail
}

// connect the client
client.connect(options);

// called when the client connects
function onConnect() {
// Once a connection has been made, make a subscription and send a message.
console.log("onConnect");
client.subscribe("260fqs693/Entrant");
message = new Paho.MQTT.Message("Hello");
message.destinationName = "260fqs693/Sortant";
client.send(message);
}

function doFail(e){
console.log(e);
}

// called when the client loses its connection
function onConnectionLost(responseObject) {
if (responseObject.errorCode !== 0) {
console.log("onConnectionLost:"+responseObject.errorMessage);
}
}

// called when a message arrives
function onMessageArrived(message) {
console.log("onMessageArrived:"+message.payloadString);
}

The message on console :