HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>pointercancel basic</title>
  <style>
    p { padding: 24px; border: 2px solid #333; touch-action: none; user-select: none; }
  </style>
</head>
<body>
  <p>Interact here (touch devices more likely to cancel)</p>
  <pre id="out">(waiting for pointercancel)</pre>
  <script>
    var para = document.querySelector("p");
    var out = document.getElementById("out");
    para.addEventListener("pointercancel", function (event) {
      out.textContent = "Pointer event cancelled (id=" + event.pointerId + ")";
    });
    para.addEventListener("pointerup", function () {
      out.textContent = "pointerup (no cancel this time)";
    });
  </script>
</body>
</html>

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Element pointercancel — basic log (Try It)