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Test Info: Warnings

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
promise_test(async t => {
// We need to grab an NavigationDestination to construct the event.
navigation.onnavigate = t.step_func_done(e => {
const event = new NavigateEvent("navigate", {
destination: e.destination,
signal: (new AbortController()).signal
assert_throws_dom("SecurityError", () => event.scroll());
history.pushState(1, null, "#1");
}, "scroll: scroll() should throw if invoked on a synthetic event.");