Fixes at the end

The following are the fixes for this chapter. You can find the commit history on GitHub for each fix as follows:

• Fix—rename router: The name of the router is better if it excludes page and is lowercase. In this way, it is cleaner:

Figure 10.22: Fix—renaming router commit

• Fix—add the missing test of services.registration.spec.js: The test of the registration service doesn't include verification for calling /api/registrations, which could fail to verify the behavior of the registration service because the register() method might even skip sending the request to the backend:

Figure 10.23: Fix—add the missing test of services.registration.spec.js commit

• Fix—error handling on frontend: Different errors returned from the backend sometimes need to show the same message to users. It is better...