Jabber as muc as admin

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css">
    <script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/strophe.js/1.2.14/strophe.js"></script>
  </head>

  <body>
    <h1>Hello Plunker!</h1>
    <input type="text" id="chat_input">
    <input type="submit" id="chat_submit_button">
  </body>
  
<script src="script.js"></script>
</html>

// Code goes here

$(document).ready(function(){

  console.log("I am admin");
  var onMessage = function(stanza){
    console.log("recieved stanza" + stanza);

  }
  
  var conn = new Strophe.Connection("https://jabber.shawacademy.com:5280/http-bind/");
  conn.connect("admin@jabber.shawacademy.com","2June1989!", function(status, error){
    if(status == Strophe.Status.CONNECTED){
      conn.addHandler("onMessage", null, "message", null,null,null);
      //console.log("connection is ready");
      var uniqueID = conn.getUniqueId("my:code");
      //var reqChannelsItems = $msg({"id":uniqueID, "to":"amit@jabber.shawacademy.com"}).c("body").t("hello amit");
      //conn.send(reqChannelsItems.tree()); 
      //console.log("message sent");
      
      var o = {to:'chat-room33@conference.jabber.shawacademy.com'};
      var m = $pres(o); 
      m.c('x', {xmlns : 'http://jabber.org/protocol/muc#owner'}, null); 
      conn.send(m.tree());
      
      o = {to : 'chat-room33@conference.jabber.shawacademy.com', type:"set" , id:uniqueID};
      m = $iq(o);
      m.c('query',{xmlns : 'http://jabber.org/protocol/muc#owner'}, null).
        c('x',{xmlns:'jabber:x:data', type:'submit'}).
        c('field',{var:'FORM_TYPE'}).c('value',{},"http://jabber.org/protocol/muc#roomconfig").
        up().c('field',{var:'muc#roomconfig_persistentroom'}).c('value',{},1);
      conn.send(m.tree());
      
      //o = {to:'chat-room33@conference.jabber.shawacademy.com', type : 'groupchat'}; 
      //m = $msg(o); m.c('body', null, 'hello bbye bbye'); 
      //conn.send(m.tree());
    }
  
  });
  
});

/* Styles go here */