Hsform hack to redirects to HypnoBx chat

chat.html

<!--[if lte IE 8]>
<script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2-legacy.js"></script>
<![endif]-->
<script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2.js"></script>
<script>
hbspt.forms.create({
  portalId: "PORTAL_ID_HERE",
  formId: "FORM_ID_HERE"
});
var chatData = {};
window.addEventListener('message', event => {
  if(event.data.type === 'hsFormCallback' && event.data.eventName === 'onFormSubmit') {
    event.data.data.forEach(function (field) {
      chatData[field.name] = field.value;
    });
  }
});
window.addEventListener('message', event => {
  if(event.data.type === 'hsFormCallback' && event.data.eventName === 'onFormSubmitted') {
    var params = {
      'controle': 'Atendimento',
      'acao': 'index',
      'produto': 2,
      'midia': 'MIDIA_HERE',
      'nome': chatData.firstname,
      'email': chatData.email,
      'telefone': chatData.phone,
    };
    var paramsStr = Object.keys(params).map(function(key) {
      return key + '=' + params[key];
    }).join('&');
    var chatUrl = encodeURI('http://CLIENT_HERE.hypnobox.com.br/?'+paramsStr);
    window.location = chatUrl;
  }
});
</script>