he javascript in the source html file to manipulate the HTML DOM before it
gets converted to PDF. This mechanism is intended to be used to supply data that might otherwise be
retrieved using ajax requests.</p>
<p>To make use of this mechanism, the source html file must include a script element such as:</p>
<p>    &lt;script src='./json.js' type='text/javascript'&gt;&lt;/script&gt;</p>
<p>        where json.js refers to the JSON data,</p>
<p>And also requires javascript in the source html file to m