<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
  <meta name="HandheldFriendly" content="True" />
  <title>Editor</title>
  <style type="text/css" media="screen">
    body {
        overflow: hidden;
    }

    #editor {
        margin: 0;
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
    }
  </style>
</head>
<body>

<pre id="editor"></pre>

<script src="src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script>
<script>
    var editor = ace.edit("editor");
    editor.setOptions({
      mode: "ace/mode/markdown",
      theme: "ace/theme/twilight",
      showPrintMargin: false,
      wrap: true,
      indentedSoftWrap: true,
      showFoldWidgets: false,
      showLineNumbers: true,
      showGutter: false,
      autoScrollEditorIntoView: true
    })
    
    if (localStorage.getItem("acetest") === null) {
      editor.setValue(localStorage.getItem("acetest"));
      editor.clearSelection();
    }
    
    editor.getSession().on('change', function () {
       localStorage.setItem("acetest", editor.getSession().getValue());
   	});
</script>

</body>
</html>