| <!DOCTYPE html> |
| <title>Document has an unforgeable attribute location</title> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script> |
| // https://html.spec.whatwg.org/#document |
| // https://heycam.github.io/webidl/#Unforgeable |
| test(function() { |
| assert_true(document.hasOwnProperty("location"), "property exist on the object itself"); |
| var descriptor = Object.getOwnPropertyDescriptor(document, "location"); |
| assert_false(descriptor.configurable, "property is not configurable"); |
| assert_throws_js(TypeError, function() { |
| Object.defineProperty(document, "location", {get: function () {}}); |
| }, "attempting to modify property throws TypeError"); |
| }); |
| </script> |
