window-parent.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /html/browsers/windows/nested-browsing-contexts/window-parent.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>window.parent</title>

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

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

<div id="log"></div>

<script>

 test(function() {

   assert_equals(window, parent)

 }, '`window.parent` for top-level browsing context');

async_test(t => {

  var iframe = document.createElement('iframe');

  iframe.onload  = t.step_func_done(function () {

    var iWindow = iframe.contentWindow;

    assert_equals(iWindow.parent, window);

});

  document.body.appendChild(iframe);

}, '`window.parent` on single nested browsing context');

async_test(t => {

  var iframe = document.createElement('iframe');

  var iframe2;

  var testFunc = t.step_func_done(function () {

    var frameWindow = iframe.contentWindow;

    var frame2Window = iframe2.contentWindow;

    assert_equals(frameWindow.parent, window);

    assert_equals(frame2Window.parent, frameWindow);

    assert_not_equals(frame2Window.parent, window);

});

  var nestFrame = function () {

    iframe2 = iframe.contentDocument.createElement('iframe');

    // Workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1229707

    iframe2.src = '/common/blank.html';

    iframe2.addEventListener('load', testFunc);

    iframe.contentDocument.body.appendChild(iframe2);

};

  iframe.addEventListener('load', nestFrame);

  document.body.appendChild(iframe);

}, '`window.parent` for multiple nested browsing contexts');

</script>