When the minimal Download feature is enabled, you cannot find the __REQUESTDIGEST by using Internet Explorer's View Source feature.
But there are two quick options:
- Use the F12 Developer Tools. Click the DOM explorer then use the search box to search for __REQUESTDIGEST.
The Minimal Download feature?
What does the Minimal Download feature have to do with it? When enabled, this feature optimizes page downloads by only downloading what has changed since the last page load. Thing like Quick Launch, Top Link bar, Search, and the master page content in general, do not change when a user clicks links to lists and libraries. Cool feature? Some think not… If you are creating 2013 apps then you might want to take a look at this article: http://www.threewill.com/working-with-and-around-sharepoint-2013s-minimal-download-strategy/ and this one http://blogs.technet.com/b/jay/archive/2013/10/22/sp2013-new-feature-minimal-download-feature.aspx
While I can't see huge differences with this feature enabled, I do find a lot of ugly URLs and issues with apps and with publishing sites. When doing development I do like to work with a URL like this:
and not like this: