global-postMessage.html

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This WPT test may be referenced by the following Test IDs:
- /webmessaging/global-postMessage.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Using the global postMessage() to post a message to oneself</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<!-- Regression test for https://github.com/jsdom/jsdom/issues/3755 -->

<script>

"use strict";

async_test(t => {

  onmessage = t.step_func_done(e => {

    assert_equals(e.data, "Hello");

});

  postMessage("Hello", "*");

});

</script>