E2E tests not run in index-async.html

[newPOPE]

I want to use async scripts loading, something like index-async.html.
But E2E tests do not start. I try start it manually and also via testacular.

[petebacondarwin]

This now works. Just make sure you fix up the angular-loader js block in index-async.html first by running:

npm run update-index-async

Then you need your webserver up and running:

npm start

Finally, in a different terminal, run protractor:

npm run protractor