Geolocation issue with Speed -


i trying display user's location , speed on map. code correctly display location displays speed if first move map centre user's location. prefer not move map , want display speed location.

am missing in code below?

function showposition(position) {     speedlat = (position.coords.latitude).tofixed(3)     speedlng = (position.coords.longitude).tofixed(3)     rawspeed = position.coords.speed;              //rawspeed = 2.2352; // test figure of 5 mph         speedmph = (rawspeed * 2.2369362920544).tofixed(2); // conversions m/s         speedkph = (rawspeed * 3.6).tofixed(2);         speedknts = (rawspeed * 1.9438444924574).tofixed(2);                 mph = "speed in mph: " + speedmph; // set display results             kph = "speed in kph: " + speedkph;             knt = "speed in knots: " + speedknts;          document.getelementbyid('showmph').innerhtml = speedmph; // populate popup results          document.getelementbyid('showkph').innerhtml = speedkph;         document.getelementbyid('showknts').innerhtml = speedknts;           document.getelementbyid('showlat').innerhtml = speedlat;           document.getelementbyid('showlng').innerhtml = speedlng;     myapp.popup('.popup-speed');     // show speeds/location in popup }


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