When you load the first page of a jQuery Mobile based site, then click a link or submit a form, AJAX is used to pull in the content of the requested page. Having both pages in the DOM is essential to enable the animated page transitions, but one downside of this approach is that the page title is always that of the first page, not the subsequent page you're viewing. To remedy this, jQuery Mobile automatically parses the
title of the page pulled via AJAX and changes the
title attribute of the parent document to match.
On multi-page documents, we follow a similar convention, but since all the pages share a common
title, we have a
data-title attribute that can be added to each page container within a multi-page template to manually define a title. The title of the HTML document will be automatically updated to match the
data-title of the page currently in view.
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<div data-role="page" id="foo" data-title="Page Foo"> </div><!-- /page -->