Source not found - 404 error

<script type="text/javascript"  language="javascript">
     $(document).ready(function () {
         //function search(){
         $.ajax({
             type: "GET",
             url: location.pathname +"Home/AllCities",
             data: "{}",
             dataType: "json",
             contentType: "application/json; charset=utf-8",
             success: OnSuccess,
             error: onerror

         });
     });
     function onerror(data) {
         alert("error");
         
         var list = "<select>";
         for (var i = 0; i < data.d.length; i++) {
             list += " <option>" + data.d[i].CityName + "</option>";
         }
         list += "</select>";
         $("#displayDdl").append(list);
     }
     function OnSuccess(data) {
         alert("in success function");
         var list = "<select>" ;
         for (var i = 0; i < data.d.length; i++ ) {
             list += " <option>" + data.d[i].CityName + "</option>";
         }
         list += "</select>"; 
         $("#displayDdl").append(list);
     }
    
 
 </script>