clipboard-on-detached-iframe.https.html

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This WPT test may be referenced by the following Test IDs:
- /clipboard-apis/detached-iframe/clipboard-on-detached-iframe.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>Clipboard API on detached iframe</title>

<link rel='help' href='https://w3c.github.io/clipboard-apis/#async-clipboard-api'>

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

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

<iframe id="iframe"></iframe>

<script>

'use strict';

promise_test(async () => {

  const iframe = document.getElementById('iframe');

  const iframeNavigator = iframe.contentWindow.navigator;

  assert_not_equals(navigator.clipboard, null,

      "parent frame's clipboard should exist with iframe attached");

  assert_not_equals(iframeNavigator.clipboard, null,

      "attached child iframe's clipboard should exist");

  iframe.parentNode.removeChild(iframe);

  assert_not_equals(navigator.clipboard, null,

      "parent frame's clipboard should exist with iframe detached");

  assert_not_equals(iframeNavigator.clipboard, null,

      "detached child iframe's clipboard should still exist");

}, 'Verify navigator.clipboard behavior in detached frames');

</script>