Created attachment 258176 [details] Screenshot in Safari/Webkit The controls are not visible. This is also rdar://21637693, but I ran into it again, so I thought it might help if I post it here. The site works okay in Chrome and the current iPad Safari.
Created attachment 258177 [details] Website in Chrome Compare with the screenshot in Safari.
This website now works with Safari Version 9.0.1 (10601.2.4). I'm not sure if it's a WebKit/Safari change because the site itself has been substantially reworked.