33 lines
1.4 KiB
HTML
33 lines
1.4 KiB
HTML
<!doctype html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<iframe id="i" src="/common/blank.html"></iframe>
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<script>
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promise_test(async t => {
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// Wait for after the load event so that the navigation doesn't get converted
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// into a replace navigation.
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await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));
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let destination_key = i.contentWindow.navigation.currentEntry.key;
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let destination_id = i.contentWindow.navigation.currentEntry.id;
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let destination_index = i.contentWindow.navigation.currentEntry.index;
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await i.contentWindow.navigation.navigate("#1").finished;
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let back_destination;
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i.contentWindow.navigation.onnavigate = e => back_destination = e.destination;
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await i.contentWindow.navigation.back().finished;
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// Before detach, key/id/index are valid.
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assert_equals(back_destination.key, destination_key);
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assert_equals(back_destination.id, destination_id);
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assert_equals(back_destination.index, destination_index);
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i.remove();
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// After detach, key/id/index are invalid, but the url is still valid.
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assert_equals(back_destination.key, "");
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assert_equals(back_destination.id, "");
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assert_equals(new URL(back_destination.url).pathname, "/common/blank.html");
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assert_equals(back_destination.index, -1);
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}, "navigate event destination after iframe detach");
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</script>
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