pointerevent_pointercapture-iframe.html

<html id='innerFrameDocument'>
<style>
body {
    touch-action:none;
}
</style>
  <body id='innerFrame' style='height:500px; width: 500px; padding: 0; margin: 0;'>
    <script>
      top.document.testEventList.forEach(function(eventName) {
        document.addEventListener(eventName, top.handleEvent);
      });
    </script>
  </body>
</html>

chromium/third_party/blink/web_tests/external/wpt/pointerevents/resources/pointerevent_pointercapture-iframe.html