<!doctype html> <meta charset="utf-8"> <title></title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script> test(function() { var obj = Object.create(Element.prototype); assert_true(obj instanceof Element); assert_true(obj instanceof Node); assert_false(obj instanceof Attr); }, "Manually-constructed prototype chains are correctly handled by instanceof"); </script>