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<!DOCTYPE html>
<html>
<head>
<title>Test focusing steps when dialog is disconnected</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<input>
<script>
test(function() {
const outerInput = document.querySelector("input");
outerInput.focus();
assert_equals(document.activeElement, outerInput,
"Focus should be on element we just focused");
const dialog = document.createElement("dialog");
assert_false(dialog.open, "Dialog should initially be closed");
assert_false(dialog.hasAttribute('open'), "Dialog should initially be closed");
const innerInput = document.createElement("input");
innerInput.autofocus = true;
dialog.append(innerInput);
dialog.show();
this.add_cleanup(() => { dialog.close(); });
assert_true(dialog.open, "Disconnected dialog can still be open");
assert_equals(document.activeElement, outerInput, "Focusing steps should not change focus");
}, "dialog.show(): focusing steps should not change focus on disconnected <dialog>");
test(function() {
assert_throws_dom("InvalidStateError", () => {
document.createElement("dialog").showModal();
});
}, "dialog.showModal() should throw on disconnected <dialog>");
</script>
</body>
</html>
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