1. Building Sites with Oracle Content Management
  2. Developing for Sites
  3. Customize the Controller File
  4. Custom Controller File Samples
  5. Prefetching JavaScript Files

Prefetching JavaScript Files

Some browsers allow the declaration of resources needed in current or subsequent navigations. Markup in a controller file can declare resources that should be prefetched or preloaded.

Note:

Because every OCE web page uses require.js and renderer.js, these are good candidates for the preloading and prefetching techniques. Also, when the href is listed first in the <link> tag, its value is subject to fixup by the OCE server to be delivered from a CDN. 
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1">
<link href="/SampleSite/_sitesclouddelivery/renderer/require.js" rel="preload" as="script">
<link href="/SampleSite/_sitesclouddelivery/renderer/renderer.js" rel="preload" as="script">
<script type="text/javascript">
var SCS = { sitePrefix: '/SampleSite/' };
</script>
<script src="/SampleSite/_sitesclouddelivery/renderer/controller.js"></script>
</head>
<body id="scsControllerBody"><noscript>Please enable JavaScript to view this site properly.</noscript>
<img id="scsWaitImage" style="display: none; margin-top: 5%; margin-left: auto; margin-right: auto;" src="data:image/png;base64,..." />
</body></html>