more info

https://www.evernote.com/shard/s714/sh/b6175b29-cb31-4db8-a906-fc8fcd4a4d56/e9b3681529e531fc7f2c0427dd2c777a

This example produces a map that displays the geographic locale of the person or product with a Google map, via use in their browser's HTML5 Geolocation attribute. The consumer must consent to location sharing