<!DOCTYPE html>
<html>
  <head>
    <title>Touch test</title>
  </head>
  <body>
    <script src="mouse-helper.js"></script>
    <button onclick="clicked();">Click target</button>
    <script>
      window.result = [];
      const button = document.querySelector('button');
      button.style.height = '200px';
      button.style.width = '200px';
      button.focus();
      button.addEventListener('touchstart', event => {
        log('Touchstart:', ...Array.from(event.changedTouches).map(touch => touch.identi