tpl.js | Lightweight javascript template engine

I am currently using Terraform to deploy a PHP app to AWS.
This PHP app is deployed as a Service using AWS ECS.

I have multiple clients using this app, and each client receives their own copy of the system with their own configuration as their own service - a white label if you will.

Now, having done a bit of research on Terraform I've modularized my code and created the following file structure:

I recently brought this angular library to my project:

https://github.com/a5hik/angular-multi-select-tree

Everything works great with it besides my unit testing. I am getting this error when running my tests:

Whenever I press the "Get started" button on my website, the screen goes black and I get the following errors in the console log. I do not see this issue locally, prior to grunt build being run and me deploying to Heroku:

I'm trying to make an Angular (1.6) service to handle all the authentication with Firebase.

What am I intended to do?

I want to have a button in my navbar (navbar.html line 23) which opens a modal (loginRegister.tpl.html) and in that modal have all the different ways to authenticate to the app (I want to start with facebook). Once it has the user's information from Facebook (Auth.js line 21) I want to use the Auth service to make the information available to all the controllers, but it seems that after I assign the information to a service property, it doesn't reflect in other places where the service's property is refered (main.js line 14)

Even if I close the modal with the user's information as parameter (loginRegister.tpl.js line 6) I cannot assign it to the service's property on navbar.js line 20.

Could you assist me with this issue?

I have a simple html page with angularJS. Here is my html page code :