HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Pointer lock exit</title>
  <style>
    body { font-family: system-ui, sans-serif; margin: 1rem; }
    #canvas { width: 320px; height: 180px; background: #4c1d95; color: #fff; display: grid; place-items: center; border-radius: 8px; cursor: crosshair; }
  </style>
</head>
<body>
  <div id="canvas">Click to lock</div>
  <button type="button" id="unlock">Unlock pointer</button>
  <pre id="out">Status: unlocked</pre>
  <script>
    const canvas = document.getElementById("canvas");
    function exitPointerLockSafe() {
      if (document.pointerLockElement) {
        document.exitPointerLock();
      }
    }
    canvas.addEventListener("click", () => {
      canvas.requestPointerLock().catch(console.error);
    });
    document.getElementById("unlock").addEventListener("click", exitPointerLockSafe);
    document.addEventListener("pointerlockchange", () => {
      document.getElementById("out").textContent = document.pointerLockElement
        ? "Status: locked on #" + document.pointerLockElement.id
        : "Status: unlocked";
    });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

pointerLockElement — exit guard (Try It)