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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<iframe id="i1" src="/common/blank.html"></iframe>
<iframe id="i2" src="/common/blank.html"></iframe>
<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(resolve => window.onload = () => t.step_timeout(resolve, 0));
await navigation.navigate("#").finished;
await i1.contentWindow.navigation.navigate("#").finished;
i2.contentWindow.navigation.navigate("?");
await new Promise(resolve => i2.onload = () => t.step_timeout(resolve, 0));
assert_equals(navigation.entries().length, start_length + 1);
assert_equals(i1.contentWindow.navigation.entries().length, 2);
assert_equals(i2.contentWindow.navigation.entries().length, 2);
assert_equals(navigation.currentEntry.index, start_index + 1);
assert_equals(i1.contentWindow.navigation.currentEntry.index, 1);
assert_equals(i2.contentWindow.navigation.currentEntry.index, 1);
let navigate_event_count = 0;
navigation.onnavigate = t.step_func(e => {
assert_equals(navigate_event_count, 0);
navigate_event_count++;
assert_true(e.cancelable);
});
i1.contentWindow.navigation.onnavigate = t.step_func(e => {
assert_true(navigate_event_count > 0);
navigate_event_count++;
assert_false(e.cancelable);
});
i2.contentWindow.navigation.onnavigate = t.step_func(e => {
assert_true(navigate_event_count > 0);
navigate_event_count++;
assert_false(e.cancelable);
});
await navigation.traverseTo(navigation.entries()[start_index].key).finished;
// The top window will finish quickly, becuase it is same-document traversal.
// i2 will be slower because it is cross-document, so wait for its onload.
await new Promise(resolve => i2.onload = () => t.step_timeout(resolve, 0));
assert_equals(navigate_event_count, 3);
assert_equals(navigation.currentEntry.index, start_index);
assert_equals(i1.contentWindow.navigation.currentEntry.index, 0);
assert_equals(i2.contentWindow.navigation.currentEntry.index, 0);
}, "navigation.traverseTo() can navigate 3 frames of different types with correct navigate event cancelable values");
</script>
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