Access Token not being Stored / loaded when using Social Login and Angular 4

[mraquino]

What type of issue are you creating?

• [x] Bug
• [ ] Enhancement
• [ ] Question

What version of this module are you using?

• [ ] 2.0.10 (Stable)
• [x] 2.1.0-rc.n (2.1 Release Candidate n)
• [ ] Other

Write other if any:

Please add a description for your issue:

I created an app using Angular 4 and Loopback. When logging using local repository user, the process of login and use of the API created goes fine, but when I use a social provider, actually Facebook, it seems that the SDK is not setting the token in the request. Access token is saved in LoopBackAuth but not propagated in the authorization header