<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Dropping selection from text input into readonly textarea</title>
<style type="text/css">
textarea
	{padding:1em;
	width:300px;
	height:100px;}
</style>
</head>
<body onload="document.querySelector('input').select()">
<p><input value="Drag me"/></p>
<p>Try to drag selected text into the input below. You should not be able to drop it here.</p>
<p><textarea readonly="readonly" placeholder="Try to drop selected text here"/></p>
</body>
</html>