This example uses the predefined variable html-data:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Test Data</title>
</head>
<body>
<!--~~ Ordinary tiddlers ~~-->
<div id="storeArea" style="display:none;"><div title="Hello "There"" type="text/vnd.tiddlywiki">
<pre>Abacus</pre>
</div>
</div>
<script class="tiddlywiki-tiddler-store" type="application/json">[{"title":"Hello \"There\"","text":"Calculator"},{"title":"Hello \"There\"","text":"Protractor"}]</script>
</body>
</html>[<html-data>deserialize[text/html]]