Handlebars.js doesn't handle JSON's unicode keys

See : http://stackoverflow.com/questions/14661526/handlebars-js-json-and-unicode-characters-key-workaround

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.rc.2/handlebars.min.js"></script>
div {background: #CCC; } are formerly empty, then filled using 3 exactly similar Handlebar.js script. Only the data called change, with 3 tests: <br />1. aphabetic key-alphabetic values, <br />2. alphabetickey-CJK values, and <br />3. CJK_unicode_key-CJK_values called from the JSON.<br />When Handlebar.js works, the div contains a green text.<br /><br /><br />

1. {{title}} <span>(Alpha key, Alpha val)</span>: <div id="container1"></div>

<br />
2. "{{bla.key}}" test <span>(Alphanum key > CJK-Alphanum value)</span>: <div id="container2"></div>

<br /><br />
3. "{{口.key}}" test  <span>(CJK key > CJK-Alphanum value)</span>: <div id="container3"></div>(no green text = fails. Shouldn't.)<br />(Note: Mustache.js works fine.)

CSS

* { color: green; font-size: 0.8em}
div { border: 1px solid #666; padding: 5px; background: #CCC; }
span {color: #666; margin-left: 3em; }

JavaScript

var jsonDictSample = {
  title: "My first word!",
  alpha: {
    zht: "alphabetic root-口-我是個帥哥",
    pyn: "alphabetic root-kou3",
    dfn: "alphabetic root-mouth"
  },
  口: {
    zht: "CJK root- 口-我是個帥哥",
    pyn: "CJK root-kou3",
    dfn: "CJK root-mouth"
  },
}


var source1   = '<p>{{title}}</p>';
var template = Handlebars.compile(source1);
var html  = template(jsonDictSample);
$('#container1')
  .append(html);

var source2   = '<p>{{title}}<br />/{{alpha.zht}}}<br />/{{alpha.pyn}} <br />/{{alpha.dfn}}</p>';
var template = Handlebars.compile(source2);
var html  = template(jsonDictSample);
$('#container2')
  .append(html);

var source3   = '<p>{{title}}<br />/{{口.zht}}}<br />/{{口.pyn}} <br />/ {{口.dfn}}</p>';
var template = Handlebars.compile(source3);
var html  = template(jsonDictSample);
$('#container3')
  .append(html);