title: Header is visible in navigation Experimental on slide transition of page in react-native
body: <p>I have returned null in renderHeader of my application's first page, still the first page header is visible on slide transition from second to first page.  <a href="https://github.com/facebook/react-native/issues/9656" rel="nofollow noreferrer">Same problem I am having</a> How do I remove it.</p>