<!DOCTYPE html>
<meta charset="utf-8">
<title>Cross-document navigations during cross-document traversals</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<!--
According to the spec, if ongoing navigation is "traversal", the navigation
fails and nothing happens.
-->
<body>
<script type="module">
import { createIframe, waitForLoad, delay, waitForPotentialNetworkLoads } from "./resources/helpers.mjs";
promise_test(async t => {
const iframe = await createIframe(t);
const slowURL = (new URL("resources/slow.py", location.href)).href;
// Setup
// Extra delay()s are necessary because if we navigate "inside" the load
// handler (i.e. in a promise reaction for the load handler) then it will
// be a replace navigation.
iframe.contentWindow.location.href = slowURL;
await waitForLoad(iframe);
await delay(t, 0);
iframe.contentWindow.location.href = "/common/blank.html?2";
await waitForLoad(iframe);
await delay(t, 0);
iframe.contentWindow.history.back();
assert_equals(iframe.contentWindow.location.search, "?2", "must not go back synchronously");
iframe.contentWindow.location.href = "/common/blank.html?3";
assert_equals(iframe.contentWindow.location.search, "?2", "must not navigate synchronously");
// We end up at slow.py and never at /common/blank.html?3
await waitForLoad(iframe);
assert_equals(iframe.contentWindow.location.href, slowURL, "first load after the nav");
await waitForPotentialNetworkLoads(t);
assert_equals(iframe.contentWindow.location.href, slowURL, "must stay on slow.py");
}, "slow cross-document traversal and then fast cross-document navigation: traversal wins and nav is ignored");
promise_test(async t => {
const iframe = await createIframe(t);
const slowURL = (new URL("resources/slow.py", location.href)).href;
// Setup
// Extra delay()s are necessary because if we navigate "inside" the load
// handler (i.e. in a promise reaction for the load handler) then it will
// be a replace navigation.
iframe.contentWindow.location.search = "?1";
await waitForLoad(iframe);
await delay(t, 0);
iframe.contentWindow.location.search = "?2";
await waitForLoad(iframe);
await delay(t, 0);
iframe.contentWindow.history.back();
assert_equals(iframe.contentWindow.location.search, "?2", "must not go back synchronously");
iframe.contentWindow.location.href = slowURL;
assert_equals(iframe.contentWindow.location.search, "?2", "must not navigate synchronously");
// We end up at ?1 and never at slowURL
await waitForLoad(iframe);
assert_equals(iframe.contentWindow.location.search, "?1", "first load after the nav");
// The long timeout is because slow.py would take 2 seconds, if it did load.
await delay(t, 3000);
assert_equals(iframe.contentWindow.location.search, "?1", "must stay on ?1");
}, "fast cross-document traversal and then slow cross-document navigation: traversal wins and nav is ignored");
</script>
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