I am using React with Es6. I have a react app that triggers the mentioned exception right when I attempt to setState. So the secondary state set handler event never runs. Now the actual exception happens in a file called es6.promise.js. Obviously this has something to do with promises, but I'm not sure why it would happen here since I'm not using promises at this point but setting react state.
I don't know if this has anything to do with it but I'm using wijmo's collectionView to set my state to it.