How to send a jms message to activeMQ and decode it in javascript with mqttJS properly

I have a java backend, where I can send messages to topics via

jmsTemplate.convertAndSend("topic", "Hello World!");

In my javascript frontend I use mqttJS to connect to activeMQ and recieve the massage:

    let mqtt = require('mqtt')
    let options ={
        clientId:"test",
        username:"username",
        useSSL: true,
        password:"password",
        clean:true};
    let client  = mqtt.connect(
        'wss://someUrl.com:61619',
        options);

    client.on('connect', function () {
        client.subscribe('myTopic', function (err) {
            if (!err) {
                console.log("successfully connected to myTopic'");
            }
        })
    });

    client.on('message', function (topic, message) {
        console.log(message.toString());
    });

The message I recieve from the backend is something like this:

S�A S�)�x-opt-jms-destQ�x-opt-jms-msg-typeQ Ss�   f    
�/ID:myID@�topic://myTopic@@@@�  j��< St�
e Sw�  Hello World!

My message "Hello World!" is there. But also a bunch of unreadable into, I would guess from the header.

I tried different MessageConverters on the backend side and different parsers on the frontend side. Nothing works.

What do I need to do, to get just "Hello World!" as message? Or is there a better way to send the message, using jms, which is required.

from How to send a jms message to activeMQ and decode it in javascript with mqttJS properly