Content Delivery Networks (CDN) are useful to increase website performance, such as a great way to help speed up your site download times, even if by a fraction of a second. In branding, we often use public CDN’s offered by Google or Microsoft that host common files such as jQuery libraries. If we plan to use Design Manager for our Master Pages and Page Layouts, an issue arises with how SharePoint 2013 and Design Manager parse our HTML using XML.