Error not displayed in the page

I got a problem where errors are not being displayed.

Here is my code

   $.ajax({
           url: '{{ url("userposteditajax") }}',
          dataType: 'json',
          type: 'post',
          data: {firstname:firstname,lastname:lastname,phone:phone,email:email,address:address,country:country,city:city,password:password,role:role,status:status,id:id},
          success: function( data, textStatus, jQxhr ){
            if(data.message == 'Success')
            {
                $('#ajax_submit').prop('disabled', false);

                location.reload();
                $.magnificPopup.close();
            }
            else {
                var errors = data.message;
                 $('#ajax_submit').prop('disabled', false);

                $.each( errors, function( key, value ) {
                // console.log(errors);
                    $('#ajax_error').fadeIn('slow',function(){

                        $('#ajax_error_mess').html(value);

                    });
                });
            }

            },
            error: function( jqXhr, textStatus, errorThrown ){

                $('#ajax_submit').prop('disabled', false);
                var errors = jqXhr.responseJSON;
                $.each( errors, function( key, value ) {
                    $('#ajax_error').fadeIn('slow',function(){
                        $('#ajax_error_mess').html(value);
                    });
                });
            }
       });
    return false;
   });

My controller code:

 $rules = ['firstname' => 'required|max:20',
               'lastname'  => 'required|max:10',

               'phone'     => 'required|max:15',
               'email'     => 'required|email',
               'address'   => 'required',
               'country'   => 'required',
               'city'      => 'required',
               'role'      => 'required',
               'status'    => 'required'];
            $validator = Validator::make(Input::all(),$rules);
            if( $validator->fails() )
            {           

            $error='';
            $mess = $validator->getMessageBag()->toArray();
            foreach($mess as $row => $val)
             {
                foreach($val as $key )
                {
                    $error .=$key." <br />";
                }
             }

                //return json_encode(array('message'=>$error));
                return Response::json(array('message'=>$error));

            }

The error is not displayed even in console.

The output in response I get is

 {"message":"The firstname field is required. <br \/>The lastname field is required. <br \/>The email field is required. <br \/>The address field is required. <br \/>"}

via Chebli Mohamed