This question was not thoroughly answered here: {{content-for 'head'}} Ember-cli
In the latest version of ember-cli, {{content-for 'head'}} is required in index.html (breaks when I remove it) with zero explanation about it in the docs. I got as far as reading about ember-cli-inline-content here: https://www.npmjs.org/package/ember-cli-inline-content. But where is 'head' defined in the latest ember-cli? Can someone explain this more thoroughly please?