Change in emulator specification

[tzkmx]

firebase-course/src/app/app.module.ts

Line 87 in f5a632e

{ provide: USE_AUTH_EMULATOR, useValue: environment.useEmulators ? ['localhost', 9099] : undefined },

There is a bug since 7.0.3 in AngularFire that requires the host and port be specified in a single string rather than an array of [host, port]. Why they choose to keep an array therefore I don't know, but I've confirmed this allow to use the emulator correctly.

angular/angularfire#2929 (comment)