First tap the map to view the itinerary in detail and then start the geolocated route with the button at the bottom of the page.
Since location detection may take a few moments, please wait.
ANDROID users
Select Location from the phone settings 
, and make sure that location is turned on
Possible additional settings
Still in the same menu, go to App location permissions and select your internet browser.
Now choose an option that allows the access to your location and turn on the slide to share your precise location.
Special cases (only for Chrome)
If despite the above settings you still see the message that geolocation is not enabled, you may need a further setting on Chrome.
So act on Chrome's menu (the three vertical dots in the upper right corner) and select:
Settings > Site settings > Location > then turn location on
IPHONE users
First select Privacy followed by Location Services from the phone settings , and then make sure that Location Services is turned on
Possible additional settings
Still in the same menu, scroll down through the app list to find and select your internet browser.
Now choose an option that allows the access to your location and turn on the slide to share your precise location.