<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Selection drag and drop from textarea to contenteditable element in object</title>
<style type="text/css">
object
  {width:350px;
  height:150px;}
</style>
</head>
<body onload="var t = document.querySelector('textarea');t.select();t.setSelectionRange(0,7)">
<p>Drag selected text to the blue box. Copy of selection should end up in the blue box once you drop it there.</p>
<p><textarea>Drag me</textarea></p>
<p><object type="application/xhtml+xml" data="helper-drop-here-blue-box-contenteditable.xhtml">XHTML document</object></p>
</body>
</html>