When I click on the Chest of Loki to receive its reward, the panel opens and the "explosive" imaging occurs, but nothing is displayed to be received. The Chest of Loki icon continues to shake and spew the images of coins, but never closes or resets.

Additionally, when I tried to report this via the Support feature, the field for "Game ID" refuses to accept input - so any errant behavior can't be reported (at least by me, anyway). 

I've tried it in both Firefox and Chrome with the same results. The game doesn't even launch in Internet Explorer.