Developer credits
Git commits in Moodle 3.3.x by KietLy
commit da908a84c3284009b246bfbdace577a8ba667517 Author: KietLy <Kiet.LyChan@nashtechglobal.com> Date: Thu, 28 Dec 2017 14:12:55 +0800 Tag: v3.3.5 MDL-60078 User tours accessibility: Tab should go back into the pop-up