I've discovered that this does not seem to be the case. In fact, it produces console errors.
Stripped-down demo: https://misterneutron.com/fbexit
If you start at the first thumbnail and hit Play, it behaves as expected, exiting after the last image. If you start at the first thumbnail and hit Next, then hit Play, it also works fine. But if you start by clicking the 2nd, 3rd, or 4th thumbnail and hit Play, it gets to the last image and stops, rather than exiting. In Chrome, the console complains about Maximum call stack size exceeded. In Firefox, it says Too much recursion.
A similar effect can be seen if you tell FB to loop, rather than exiting: https://misterneutron.com/fbloop
In this case, even manually moving to the 2nd, 3rd, or 4th thumbnail doesn't avoid the error. It happens whenever you hit Play on any image other than the first.
If enableWrap is set to true, things behave properly.
Floatbox 8.1.1.
« Last edit by Jeff Tucker on Sun Sep 02, 2018 10:33 pm. »