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<!DOCTYPE html>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/helpers.js"></script>
<form target="the-frame">
<input type="hidden" name="pushed">
</form>
<script>
"use strict";
promise_test(async t => {
const startingHistoryLength = history.length;
const form = document.querySelector("form");
const frameEndingURL = changeURLHost(
absoluteURL("resources/slow-message-source-with-history-and-location.html?pushed="),
"{{hosts[][www]}}"
);
form.action = frameEndingURL;
const frameStartingCode = `
parent.postMessage({ historyLength: history.length, locationHref: location.href }, "*");
`;
const frameStartingURL = codeInjectorURL(frameStartingCode);
const frame = insertIframe(t, frameStartingURL, "the-frame");
t.add_cleanup(() => frame.remove()); // helps avoid waiting for the slow load to finish the tests
assert_equals(history.length, startingHistoryLength, "Inserting frame must not change history.length");
const frameBeforeLoadedMessage = await waitForMessage();
assert_equals(frameBeforeLoadedMessage.historyLength, startingHistoryLength, "frame's starting history.length");
assert_equals(frameBeforeLoadedMessage.locationHref, frame.src, "frame's starting location.href");
form.submit();
const frameAfterFormSubmitMessage = await waitForMessage();
assert_equals(frameAfterFormSubmitMessage.historyLength, startingHistoryLength + 1, "frame's after-submit history.length");
assert_equals(frameAfterFormSubmitMessage.locationHref, frameEndingURL, "frame's after-submit location.href");
}, "No replace before load, triggered by cross-iframe formElement.submit() [iframe is cross-origin]");
</script>
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