$animate.on('addClass') etc do not provide enough info

[jamie-pate]

What class is being added? i don't know! The current implementation (1.4.3) only passes in an empty object {} as 'data'

angular.js/src/ngAnimate/animateQueue.js

Line 450 in ea8016c

notifyProgress(runner, event, 'close', {});

[matsko]

That's a good point. We should add that info.