403 http request wrapping

inc/spot.php

@@ -334,10 +334,7 @@ class Spot extends Main
 			$oWmts = new Wmts($sMapId);
 			return $oWmts->pushTile($iX, $iY, $iZ);
 		}
-		else {
-			header('HTTP/1.1 403 Forbidden');
-			exit;
-		}
+		else self::goTo403();
 	}
 	
 	public static function DecToDMS($dValue, $sType='lat') {