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Test Info: Warnings

<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(t => {
navigation.addEventListener("navigate", e => {
e.intercept({ handler: () => Promise.reject(new Error("oh no!")) });
});
window.onunhandledrejection = t.unreached_func("unhandledrejection must not fire");
location.href = "?1";
// Make sure to trigger the getter to ensure the promise materializes!
navigation.transition.finished;
t.step_timeout(() => t.done(), 10);
}, "navigation.transition.finished must not trigger unhandled rejections");
</script>