navigation-within-beforeunload.html

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This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Triggering navigation from within beforeunload event</title>

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

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

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

<script>

beforeunload_fired = false;

var t = async_test();

var base_count = 0;

var counter = 0;

onload = function() {setTimeout(function() {

  var iframe = document.getElementsByTagName("iframe")[0]

  iframe.onload = function() {

                    setTimeout(function() {iframe.contentWindow.location="navigation-within-beforeunload-2.html";}, 100);

                    // Step 4 of https://html.spec.whatwg.org/multipage/browsing-the-web.html#navigating-across-documents

                    // doesn't seem to allow navigation within a beforeunload handler,

                    // so the counter should not go beyond 1.

                    iframe.onload = t.step_func(function() {assert_equals(counter, 1); t.done()});

};

  iframe.src = "navigation-within-beforeunload-1.html?" + Math.random();

}, 100)};

</script>

<iframe src="base.html"></iframe>