Follow along with these steps and video (below) to enable location services on an iPhone or iPad using Safari.
Select Settings > Privacy > Location Settings and make sure this is toggled "on"
Scroll down and tap Safari
Choose either "Ask Next Time or When I Share" or "While Using the App"
Important: you must have "Precise Location" enabled.
Relaunch the App (close and reopen Safari)
If you chose "Ask Next Time or When I Share", then you will be prompted with this overlay to make your decision each time you access the app.
We recommend "Allow While Using App" for a better experience.