File: embed-represent-nothing-04.html

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<!doctype html>
<meta charset="utf-8">
<title>HTML Test: The embed element represents nothing when it is never being rendered</title>
<link rel="author" title="Peng Zhou" href="mailto:zhoupeng.1996@bytedance.com">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-embed-element">
<meta name="assert" content="Check if the embed element represents nothing when it is never being rendered">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  #target {
    display: none;
  }
</style>
<body>
  <script>
  async_test(t => {
    window.childLoaded = false;
    addEventListener('load', t.step_func_done(() => {
      assert_true(!!document.querySelector('embed'));
      assert_false(window.childLoaded);
    }));
  }, 'ensure the element represents nothing');
  </script>
  <embed id="target" src="embed-iframe.html"></embed>
</body>