javascript - Why does navigator.geolocation.getCurrentPosition() returns different coordinates even while standing at the same location? -

i have created app used calculate distance. works saving starting location , evaluates distance of current position position using logic working fine. problem navigator.geolocation.getcurrentposition() returns me varying coordinates while standing @ same point, coordinates range distance of 30 meters exact location. can suggest how can exact coordinates?

did try enablehighaccuracy true?

var options = {   enablehighaccuracy: true,   timeout: 5000,   maximumage: 0 };  function success(pos) {   var crd = pos.coords;    console.log('your current position is:');   console.log(`latitude : ${crd.latitude}`);   console.log(`longitude: ${crd.longitude}`);   console.log(`more or less ${crd.accuracy} meters.`); };  function error(err) {   console.warn(`error(${err.code}): ${err.message}`); };  navigator.geolocation.getcurrentposition(success, error, options); 

source: https://developer.mozilla.org/en-us/docs/web/api/geolocation/getcurrentposition