| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>EventSource: message event Realm</title> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/comms.html#dispatchMessage"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <iframe src="eventsource-onmessage-realm-support.htm"></iframe> |
| |
| <script> |
| "use strict"; |
| |
| async_test(t => { |
| window.onload = t.step_func(() => { |
| const source = new frames[0].EventSource("resources/message.py"); |
| t.add_cleanup(() => { |
| source.close(); |
| }); |
| |
| source.onmessage = t.step_func_done(e => { |
| assert_equals(e.constructor, frames[0].MessageEvent); |
| }); |
| }); |
| }, "the MessageEvent must be created in the Realm of the EventSource"); |
| </script> |
