fur elise on deployment

main.js

// ==UserScript==
// @name         Deployment - fur elise
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://jenkins.shipsy.in/blue/organizations/jenkins/*
// @icon         https://www.google.com/s2/favicons?domain=shipsy.in
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var checkExist = setInterval(function() {
   var success = document.querySelector('.svgResultStatus .circle-bg.success');
   if (success) {
      console.log('deployed! playing music!');
      var audio = new Audio('https://www.mfiles.co.uk/mp3-downloads/fur-elise.mp3');
      audio.play();
      clearInterval(checkExist);
   } else {
      console.log('Waiting for 5 seconds...');
   }
}, 5000); // check every 100ms
})();