I really need to use Geolocation; What should I do?

If you would like to use the HTML5 Geolocation API, or if your site already uses the Geolocation API, please migrate the pages making Geolocation API calls to HTTPS, ensuring that they’re used in a secure context.

There are a number of fallback options available to get a user’s location that are not affected by this change, such as Google Maps Geolocation API, GeoIP (as an example, there are other geo based solutions), and a user-entered zip code. However, we strongly recommend that the best path to ensure ongoing access to geolocation is to move to HTTPS.

Source:https://developers.google.com/web/updates/2016/04/geolocation-on-secure-contexts-only

In general under,
Default customer location I have it set as Geolocate (with the page caching support.)
try the other setting as well to get it to work.

in shipping options, I have the calculate turn off.
if I have debug mode turn on these are the messages I get.
1.Customer matched zone location not covered by your other zone.
2. You don’t ship to Australia

These messages are coming up even you are from the states I have chosen that I ship too.
what am I doing wrong?