将元数据放在HTML文档中

Question

我一直在使用这个漂亮的技巧来存储元数据块，无论是JSON还是HTML片段：

<script type="text/html">
    <p>This gets something done to it later.</p>
</script>
<script type="application/json">
    {"name":"Niet","species":"Absol"}
</script>

然后，JavaScript会获取这些标记并以某种方式使用它们的内容。

这很有效。我只有一个问题......

<script type="text/html">
    <p>This is a template for something used in many places.</p>
    <p>Rather than having, say, a hundred copies of basically the same thing,
        this lets me define the HTML once and then re-use it as needed,
        while allowing for easy editing because it doesn't need mass escaping.</p>
    <p>However, what if I want a template that contains a template?</p>
    <script type="text/html">
        <p>Nested scripts?</p>
        <p>That's not gonna work.</p>
    </script>
</script>

那又怎么样？是否还有另一个标签，也许是我还没有听说过的新HTML5功能，这让我可以用这种方式定义模板和其他数据？