joint-session-history-remove-iframe.html

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This WPT test may be referenced by the following Test IDs:
- /html/browsers/history/joint-session-history/joint-session-history-remove-iframe.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>Joint session history length does not include entries from a removed iframe.</title>

<meta name="timeout" content="long">

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

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

<body>

<iframe id="frame" src="about:blank"></iframe>

<script>

async_test(function(t) {

    t.step_timeout(() => {

        var child = document.getElementById("frame");

        var old_history_len = history.length;

        child.onload = () => {

            assert_equals(old_history_len + 1, history.length);

            document.body.removeChild(document.getElementById("frame"));

            assert_equals(old_history_len, history.length);

            t.done();

        child.src = "joint-session-history-filler.html";

    }, 1000);

});

</script>

</body>