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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(t => {
window.onload = () => t.step_timeout(() => {
let start_history_length = history.length;
let start_index = navigation.currentEntry.index;
let target_key = navigation.currentEntry.key;
let target_id = navigation.currentEntry.id;
history.pushState(1, "", "pushState.html");
assert_equals(history.length, start_history_length + 1);
navigation.onnavigate = t.step_func_done(e => {
assert_equals(e.navigationType, "traverse");
assert_true(e.cancelable);
assert_true(e.canIntercept);
assert_false(e.userInitiated);
assert_false(e.hashChange);
assert_equals(e.downloadRequest, null);
assert_equals(new URL(e.destination.url).hash, "");
assert_true(e.destination.sameDocument);
assert_equals(e.destination.key, target_key);
assert_equals(e.destination.id, target_id);
assert_equals(e.destination.index, start_index);
assert_equals(e.formData, null);
// NavigateEvent sourceElement is still in development, so test whether it is available.
if ("sourceElement" in e) assert_equals(e.sourceElement, null);
});
history.back();
}, 0);
}, "history.back() fires the navigate event when reversing a pushState()");
</script>
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