Google Maps device tracker not working

I’m trying to set up google maps device tracker. But it isn’t doing anything at all. No cookie is being created, no errors, … Nothing seems to happen at all.

This is my config:

device_tracker:
  - platform: google_maps
    username: !secret google_maps_username
    password: !secret google_maps_password
    max_gps_accuracy: 100

Any idea on how to figure out what’s going on?

your logs would tell you if there was an issue.
Can you search for device_tracker.google_maps_ in states (<> button in the dev tool)

When I check the logs i can find only these two lines:

2018-09-27 20:56:34 INFO (MainThread) [homeassistant.components.device_tracker] Setting up device_tracker.google_maps
2018-09-27 20:56:24 INFO (MainThread) [homeassistant.loader] Loaded device_tracker.google_maps from homeassistant.components.device_tracker.google_maps

Also nothing is visible in the states.