In no specific order, just things I learned while using Ember.JS
TypeError: unsupported content
at HTMLBarsMorph.Morph$setContent [as setContent] (http://localhost:4200/assets/vendor.js:56201:15)
at Object.range (http://localhost:4200/assets/vendor.js:54697:13)
at Object._htmlbarsUtilObjectUtils.merge.content (http://localhost:4200/assets/vendor.js:53624:17)
This error happened in an Integration test of a component that was expecting to have a property 'visualLabel' but instead, in my test setup