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Test Info:

  • This WPT test may be referenced by the following Test IDs:
    • /html/browsers/browsing-the-web/navigating-across-documents/replace-before-load/history-pushstate-during-pageshow.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/helpers.js"></script>
<body>
<script>
"use strict";
promise_test(async t => {
const sentinelIframe = await setupSentinelIframe(t);
const startingHistoryLength = history.length;
const code = `
window.onpageshow = () => {
history.pushState(null, null, "/common/blank.html?thereplacement");
parent.postMessage("done", "*");
};
`;
const startURL = "resources/code-injector.html?pipe=sub(none)&code=" + encodeURIComponent(code);
const afterReplacementURL = "/common/blank.html?thereplacement";
const iframe = insertIframe(t, startURL);
assert_equals(history.length, startingHistoryLength, "Inserting the under-test iframe must not change history.length");
assert_equals(await waitForMessage(), "done");
assert_equals(history.length, startingHistoryLength + 1, "history.length must change after waiting for the replacement");
}, "history.pushState() during the pageshow event must NOT replace");
</script>