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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="return-value/resources/helpers.js"></script>
<iframe id="i" src="/common/blank.html"></iframe>
<script>
async_test(t => {
window.onload = t.step_func(() => {
const iWindow = i.contentWindow;
const iDOMException = iWindow.DOMException;
const iNavigationHistoryEntry = iWindow.NavigationHistoryEntry;
i.contentWindow.navigation.navigate("#1").finished.then(t.step_func(() => {
assert_equals(i.contentWindow.navigation.entries().length, 2);
let key = i.contentWindow.navigation.entries()[0].key;
let onnavigateerror_called = false;
let result;
i.contentWindow.navigation.onnavigate = t.step_func(e => {
e.intercept({ handler: () => new Promise(resolve => t.step_timeout(resolve, 2)) });
t.step_timeout(() => i.remove(), 1);
});
i.contentWindow.navigation.onnavigatesuccess = t.unreached_func("navigatesuccess must not fire");
i.contentWindow.navigation.onnavigateerror = t.step_func(e => {
assert_false(onnavigateerror_called);
onnavigateerror_called = true;
assert_equals(e.filename, location.href);
assert_greater_than(e.lineno, 0);
assert_greater_than(e.colno, 0);
assertCommittedFulfillsFinishedRejectsExactly(t, result, iWindow.navigation.currentEntry, e.error, iWindow, iDOMException, iNavigationHistoryEntry).then(
() => t.done(),
t.step_func(err => { throw err; })
);
});
result = i.contentWindow.navigation.traverseTo(key);
}));
});
}, "Detach a window between when a traverseTo() fires navigate and navigatesuccess");
</script>
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