<!DOCTYPE html>
<html>
<head>
<script>

function boom()
{
  var j = document.createTextNode("j");
  var r = document.createRange();
  r.setEnd(j, 1);
  j.splitText(0);
  r.setEnd(j, 0);
}

</script>
</head>

<body onload="boom();"></body>

</html>