This is related to our new implementation of cake.
assert.js:21 Uncaught Error: Assertion failed: undefined
at window.assertions.assertFunction (assert.js:21)
at Easing.polynomialEaseInOutValue (Easing.js?bust=1498137140184:104)
at CakePieceNode.step (CakePieceNode.js?bust=1498137140184:124)
at CellSceneView.js?bust=1498137140184:109
at u (lodash-4.17.4.min.js?bust=1498137140184:5)
at Function.ru (lodash-4.17.4.min.js?bust=1498137140184:67)
at CakeView.step (CellSceneView.js?bust=1498137140184:108)
at IntroScreenView.step (IntroScreenView.js?bust=1498137140184:202)
at Sim.stepSimulation (Sim.js?bust=1498137140184:844)
at Sim.runAnimationLoop (Sim.js?bust=1498137140184:770)
This is related to our new implementation of cake.