Request location coordinates after user has blocked access in javascript

Question

How can I prompt a user for their geo-location in javascript if they\'ve blocked my request in the past? (using navigator.geolocation.getCurrentPosition).

For exampl

Answer 1

As mentioned by @matthew-shwery, you can not change the permission.
the best you could do is check for the permission and notify the user is the permission is denied

navigator.permissions.query({
     name: 'geolocation'
 }).then(function(result) {
     if (result.state == 'granted') {
         report(result.state);
         geoBtn.style.display = 'none';
     } else if (result.state == 'prompt') {
         report(result.state);
         geoBtn.style.display = 'none';

         navigator.geolocation.getCurrentPosition(revealPosition, positionDenied, geoSettings);
     } else if (result.state == 'denied') {
         report(result.state);
         geoBtn.style.display = 'inline';
     }
     result.onchange = function() {
         report(result.state);
     }
 });

Geolocation docs