performance-navigation-timing-redirect-on-history.tentative.window.js

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /performance-timeline/not-restored-reasons/performance-navigation-timing-redirect-on-history.tentative.window.html - WPT Dashboard Interop Dashboard

// META: title=RemoteContextHelper navigation using BFCache

// META: script=./test-helper.js

// META: script=/common/dispatcher/dispatcher.js

// META: script=/common/get-host-info.sub.js

// META: script=/common/utils.js

// META: script=/html/browsers/browsing-the-web/back-forward-cache/resources/rc-helper.js

// META: script=/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js

// META: script=/websockets/constants.sub.js

// META: timeout=long

'use strict';

const {ORIGIN, REMOTE_ORIGIN} = get_host_info();

// Ensure that notRestoredReasons reset after the server redirect.

promise_test(async t => {

  const rcHelper = new RemoteContextHelper();

  // Open a window with noopener so that BFCache will work.

  const rc1 = await rcHelper.addWindow(

      /*config=*/ null, /*options=*/ {features: 'noopener'});

  // Use WebSocket to block BFCache.

  await useWebSocket(rc1);

  // Create a remote context with the redirected URL.

  let rc1_redirected =

      await rcHelper.createContext(/*extraConfig=*/ {

        origin: 'HTTP_ORIGIN',

        scripts: [],

        headers: [],

});

  const redirectUrl =

      `${ORIGIN}/common/redirect.py?location=${encodeURIComponent(rc1_redirected.url)}`;

  // Replace the history state.

  await rc1.executeScript((url) => {

    window.history.replaceState(null, '', url);

  }, [redirectUrl]);

  // Navigate away.

  const newRemoteContextHelper = await rc1.navigateToNew();

  // Go back.

  await newRemoteContextHelper.historyBack();

  const navigation_entry = await rc1_redirected.executeScript(() => {

    return performance.getEntriesByType('navigation')[0];

});

  assert_equals(

      navigation_entry.redirectCount, 1, 'Expected redirectCount is 1.');

  // Becauase of the redirect, notRestoredReasons is reset.

  assert_equals(

      navigation_entry.notRestoredReasons, null,

      'Expected notRestoredReasons is null.');

});