prefer this.import instead of app.import

[brendenpalmer]

this allows using loader.js as a nested dependency; import internally uses _findHost and calls import on this: https://github.com/ember-cli/ember-cli/blob/master/lib/models/addon.js#L784

[rwjblue]

I think we probably need to try this.import and fallback to app.import.

I'm specifically worried about mega old ember-cli versions that don't have this.import, but folks are using the current major version of loader.js without issue.

[machty]

This is biting me because I'm extracting an ember-engine from an app and currently have loader.js specified as an engine dependency... is "loader.js" considered a dependency of an engine? If not, why not?

[TikiTDO]

@rwjblue Any chance this could get merged?