Firebase remote config

Ionic Framework ionic-v3
1

Hi,
I’m using firebase on a certain project (V3).
I use this plugin: firebase plugin.
FCM and Database (Using angularfire) works (though I wasn’t able to send push notifications to devices, tested on iOS)

when I use this code:

  this.url = "";
     console.log("before getValue()");
     this.firebase.getValue("info_url").then(url => {
       console.log("during getValue()");
       this.url = url;
       console.log(this.url);
    }).catch(error => {
       console.log(error);
    });
    console.log("after getValue()");

console prints:
before getValue()
after getValue()

and I don’t get any URL.

EDIT:
In app.component.ts I also want to call inside this.platform.ready().then() one of those functions. Which one should I use?

getWindowConfig() {
    (<any>window).FirebasePlugin.fetch(600, result => {
      // activate the fetched remote config
      console.log(JSON.stringify(result)); //Always "OK"
      (<any>window).FirebasePlugin.activateFetched(
        // Android seems to return error always, so we want to cath both
        result => {
          console.log(JSON.stringify(result)); //either true or false
          (<any>window).FirebasePlugin.getValue("info_url", result => {
            console.log(result)
          }, reason => {
            console.warn(`Error  ${reason}`);
          });
        }, reason => {
          console.warn(reason);
        }
      )
    });
  }

  async getConfigValues() {
    if (this.platform.is('android')) {
      var defaults = {
        support_email: "<default>",
        nanobyte_email: "<default>",
        kilobyte_email: "<default>",
        megabyte_email: "<default>",
        gigabyte_email: "<default>",
        hadassah_email: "<default>",
        service_email: "<default>",
        info_url: "<default>",
        schedule_url: "<default>"
      }
      await this.firebase.setDefaults(defaults);
    }
    await this.firebase.fetch();
    this.firebase.activateFetched();
  }

I would love to get suggestions.
Thank you for answers.

Amit