jquerymobile 1.4.5 not working

jquerymobile 1.4.5 not working

I have successfully built a multipage template with jquerymobile 1.3.2 but can't get the same template to work with jquerymobile 1.4.5

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>
<!-- Start of first page -->
<div data-role="page" id="foo">

<div data-role="header">
<h1>Foo</h1>
</div><!-- /header -->

<div role="main" class="ui-content">
<p>I'm first in the source order so I'm shown as the page.</p>
<p>View internal page called <a href="#bar">bar</a></p>
</div><!-- /content -->

<div data-role="footer">
<h4>Page Footer</h4>
</div><!-- /footer -->
</div><!-- /page -->

<!-- Start of second page -->
<div data-role="page" id="bar">

<div data-role="header">
<h1>Bar</h1>
</div><!-- /header -->

<div role="main" class="ui-content">
<p>I'm the second in the source order so I'm hidden when the page loads. I'm just shown if a link that references my id is beeing clicked.</p>
<p><a href="#foo">Back to foo</a></p>
</div><!-- /content -->

<div data-role="footer">
<h4>Page Footer</h4>
</div><!-- /footer -->
</div><!-- /page -->

</body>

Thanks