I have found on devices using older versions of Jelly Bean (in my case I'm using a Galaxy S3 with 4.1.2) that when the navigation is open, clicking 'nav-open-btn' does not close the navigation. Clicking outside the navigation below that button does close the navigation as intended.
I have found on devices using older versions of Jelly Bean (in my case I'm using a Galaxy S3 with 4.1.2) that when the navigation is open, clicking 'nav-open-btn' does not close the navigation. Clicking outside the navigation below that button does close the navigation as intended.