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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/browsers/history/the-history-interface/history-state-after-bfcache.window.html - WPT Dashboard Interop Dashboard
// META: title=Navigating back to a bfcached page does not reset history.state
// META: script=/common/dispatcher/dispatcher.js
// META: script=/common/utils.js
// META: script=/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js
'use strict';
promise_test(async t => {
const rcHelper = new RemoteContextHelper();
// Open a window with noopener so that BFCache will work.
const rc = await rcHelper.addWindow(null, { features: "noopener" });
// Add a pageshow listener to stash the event, and set history.state using replaceState().
await rc.executeScript(() => {
window.addEventListener('pageshow', (event) => {
window.pageshowEvent = event;
});
history.replaceState({ foo: 'bar' }, '', '');
window.stashedHistoryState = history.state;
});
const rc2 = await rc.navigateToNew();
await rc2.historyBack();
assert_implements_optional(
await rc.executeScript(() => window.pageshowEvent.persisted),
'precondition: document was bfcached'
);
assert_equals(
await rc.executeScript(() => history.state.foo),
'bar',
'history.state was restored correctly'
);
assert_true(
await rc.executeScript(() => window.stashedHistoryState === history.state),
'history.state did not get serialized and deserialized');
});