@{
    ViewBag.Title = "Home Page";
}
@section Scripts {
    <script>
        var x = document.getElementById("demo");
        function getLocation() {
            if (navigator.geolocation) {
                navigator.geolocation.getCurrentPosition(showPosition);
            } else {
                x.innerHTML = "Geolocation is not supported by this browser.";
            }
        }
        function showPosition(position) {
            x.innerHTML = "Latitude: " + position.coords.latitude +
            "<br>Longitude: " + position.coords.longitude;
        }
        window.onload(getLocation());
    </script>
}

<div id="demo"></div>

public async Task<ActionResult> Login(LoginViewModel model, string returnUrl) {