Socket.io doesnt save chat history

Hi Rasa Community! I have been using this HTML code for testing when I realized the chat history with the users did not save when I ran Rasa X to check the conversations my chatbot had with test users. Am I missing something or did I do it wrong? Feel free to comment thanks!

<!doctype html>

<html lang="en">
<head>
  <meta charset="utf-8">

  <title>Test Lisa</title>
 
  <link rel="stylesheet" href="css/styles.css?v=1.0">

</head>
<body>
<div id="webchat"></div>
<script src="https://cdn.jsdelivr.net/npm/rasa-webchat/lib/index.min.js"></script>
<script>
  WebChat.default.init({
    selector: "#webchat",
    initPayload: "/greet",
    customData: {"language": "en"}, // arbitrary custom data. Stay minimal as this will be added to the socket
    socketUrl: "https://ngrokurl.ngrok.io",
    socketPath: "/socket.io/",
    title: "Lisa",
    subtitle: "Chat with the new Edaran Bot!",
    params: {"storage": "session"} // can be set to "local"  or "session". details in storage section.
  })
</script>
</body>
</html>

I have also add the socket.io auth in my credentials.yml

socketio:
  user_message_evt: user_uttered
  bot_message_evt: bot_uttered
  session_persistence: true/false

your chat history saved in local storage.For use localstorage press ctrl+shift+I(inspect)and then go to application .In application there 2 option Local and session storage .check this 2 option you got your chat history.

Hi sorry for the late reply was busy on the weekend. If I set it on session where should I check for it? And if I set it on local where should I check for it?