HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>willbegin preventDefault</title>
  <style>
    #pad {
      width: 300px;
      height: 110px;
      border: 2px dashed #2563eb;
      display: flex;
      align-items: center;
      justify-content: center;
      user-select: none;
      background: #eff6ff;
      text-align: center;
      padding: 0.5rem;
    }
  </style>
</head>
<body>
  <div id="pad">Press — preventDefault on willbegin</div>
  <pre id="out">Waiting...</pre>
  <script>
    var pad = document.getElementById("pad");
    var out = document.getElementById("out");

    if (!("onwebkitmouseforcewillbegin" in window)) {
      out.textContent = "Needs Safari macOS Force Touch for preventDefault demo.";
    }

    pad.addEventListener("webkitmouseforcewillbegin", function (event) {
      event.preventDefault();
      out.textContent = "preventDefault() on willbegin — custom Force Touch UI only";
    });

    pad.addEventListener("webkitmouseforcedown", function () {
      out.textContent = "Custom force-click (system defaults suppressed)";
    });
  </script>
</body>
</html>

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Element webkitmouseforcewillbegin — preventDefault (Try It)