JSFiddle - React, Tailwind, and code Playground

JavaScript

var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
var source;
function getData() {
  source = audioCtx.createBufferSource();
  request = new XMLHttpRequest();
  request.open('GET', 'https://mpclubtest.s3.amazonaws.com/Malice_Bass.wav', true);
  request.responseType = 'arraybuffer';
  request.onload = function() {
      var audioData = request.response;
      var dv = new DataView(audioData);
      var junk = 0;
      var position = 12;
      do {
          var header = String.fromCharCode.apply(null, Uint8Array(audioData, position, 4));
          var length = dv.getUint32(position + 4, true);
          if (header.trim() === 'fmt') {
              junk = junk + length - 16;
          }
          position = position + 8 + length;
      }while(position < audioData.byteLength);
      var productArray = new Uint8Array(audioData.byteLength - junk);
      productArray.set(new Uint8Array(audioData, 0, 12));
      var newPosition = 12;
      position = 12;
      var fmt_length_spot;
      do {
          var header = String.fromCharCode.apply(null, Uint8Array(audioData, position, 4));
          var length = dv.getUint32(position + 4, true);
          if (header.trim() === 'fmt') {
              productArray.set(new Uint8Array(audioData, position, 24), newPosition);
              fmt_length_spot = newPosition + 4;
              newPosition = newPosition + 24;
          }
          else {
              productArray.set(new Uint8Array(audioData, position, length + 8), newPosition);
              newPosition = newPosition + 8 + length;
          }
          position = position + 8 + length;
      }while(position < audioData.byteLength);
      audioData = productArray.buffer;
      dv = new DataView(audioData);
      dv.setUint32(4, audioData.byteLength - 8, true);
      dv.setUint32(fmt_length_spot, 16, true);
      audioCtx.decodeAudioData(audioData, function(buffer) {
          source.buffer = buffer;
          source.connect(audioCtx.destination);
   ...