Hide url bar in iOS7.1

A property, minimal-ui, has been added for the viewport meta tag key that allows minimizing the top and bottom bars on the iPhone as the page loads. While on a page using minimal-ui, tapping the top bar brings the bars back. Tapping back in the content dismisses them again.

For example, use <meta name=”viewport” content=”width=1024, minimal-ui”>.

http://www.everythingicafe.com/forum/threads/lets-talk-ios-7-1-beta-2.104595/