HTML onstalled Event Attribute - Playground Example

<!DOCTYPE html>
<html>
<body>

<video controls onstalled="myFunction()">
  <source src="sample.mp4" type="video/mp4">
  Your browser does not support HTML5 video.
</video>

<script>
function myFunction() {
    alert("EXAMPLE: Data of this media not available");
}
</script>

</body>
</html>