NgAnimate > ng-leave classes randomly fail to be applied on iOS browsers

[adrienlamotte]

I'm submitting a ...

• bug report
• feature request
• other (Please do not submit support requests here (see above))

Current behavior:
On iOS browsers, ng-leave classes randomly fail to be applied or remobed to early (the leave animation is broken)

Expected / new behavior:
The ng-leave classes should always be applied

Minimal reproduction of the problem with instructions:
You can reproduce using that plnkr (on iOS) : http://plnkr.co/edit/Ist9VM7DhUXocVb0Xvog?p=preview

Angular version: 1.6.4
I tried 1.5.8 to 1.6.5 (snapshot), same problem

Browser: [iOS 9, iOS 10 all browsers]

Anything else:
Thank you :)

[gkalpak]

One for the iOS owners 😛
There have been a few [issues reported] about animations on iOS. It seems that something is going on there, but not sure what (or how to find out or if AngularJS can do something about it).