| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>"handleEvent" property of EventHandler should be ignored</title> |
| <link rel="help" href="https://html.spec.whatwg.org/#eventhandler"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="log"></div> |
| <script> |
| "use strict"; |
| |
| test(t => { |
| const handler = Object.create(null, { |
| handleEvent: { |
| get: t.unreached_func('"handleEvent" property should not be looked up'), |
| }, |
| }); |
| |
| const el = document.createElement("div"); |
| el.onmouseenter = handler; |
| el.dispatchEvent(new MouseEvent("mouseenter")); |
| }, 'plain object "mouseenter" handler'); |
| |
| async_test(t => { |
| const handler = Object.create(Function.prototype, { |
| handleEvent: { |
| get: t.unreached_func('"handleEvent" property should not be looked up'), |
| }, |
| }); |
| assert_true(handler instanceof Function); |
| |
| window.onmessage = handler; |
| window.postMessage({}, "*"); |
| |
| step_timeout(() => { |
| t.done(); |
| }, 50); |
| }, 'non-callable "message" handler that is instance of Function'); |
| </script> |
