<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Testcase for bug 682650 of Mozilla</title>
<script>
function boom() {
  document.documentElement.contentEditable = "true";
  document.execCommand("inserthtml", false, "<button><\/button>");
  document.execCommand("inserthtml", false, "i".repeat(34646));
  document.execCommand("contentReadOnly", false, null);
  document.execCommand("removeformat", false, null);
  document.execCommand("hilitecolor", false, "red");
  document.execCommand("inserthtml", false, "a");
  document.execCommand("delete", false, null);
}
</script>
</head>
<body onload="boom();"></body>
</html>
