I like this one better:
Code:
data:text/html, <html style="background-color:#eeeeee"><title>Notepad</title><body contenteditable style="background-color:#FEFEFC; font-size:16px;font-family:Helvetica,sans-serif;line-height:1.4;max-width:60rem;margin:0 auto;padding:4rem; box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.4);"><h1 id="title">New Note</h1><div id="note">New Text<script>var text = document.getElementById("title");var selection = window.getSelection(); selection.setBaseAndExtent(text, 0, text, 1);window.onbeforeunload=function(){ return "Navigating away from this page will remove all notes. Are you sure?"; }</script>
The best part is that you can not just close the window without notice.
Link:
TinyURL.com - shorten that long URL into a tiny URL