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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async t => {
let start_length = navigation.entries().length;
let start_index = navigation.currentEntry.index;
// Wait for after the load event so that the navigation doesn't get converted
// into a replace navigation.
await new Promise(r => window.onload = () => t.step_timeout(r, 0));
await navigation.navigate("#1").finished;
navigation.onnavigate = e => e.intercept();
navigation.oncurrententrychange = e => {
if (e.navigationType == "traverse") {
assert_equals(location.hash, "");
assert_equals(navigation.currentEntry.index, start_index);
assert_equals(navigation.entries().length, start_length + 1);
navigation.navigate("#2");
}
};
let back_result = navigation.back();
await back_result.committed;
assert_equals(location.hash, "#2");
await promise_rejects_dom(t, "AbortError", back_result.finished);
assert_equals(navigation.currentEntry.index, start_index + 1);
assert_equals(navigation.entries().length, start_length + 1);
}, "Using intercept() then navigate() in the ensuing currententrychange should abort the finished promise (but not the committed promise)");
</script>
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