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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async t => {
const err = new TypeError("a message");
let start_href = location.href;
let onnavigateerror_called = false;
let caught_rejection = false;
navigation.onnavigatesuccess = t.step_func(assert_unreached);
navigation.onnavigateerror = t.step_func(e => {
onnavigateerror_called = true;
assert_equals(location.hash, "#1");
assert_equals(e.constructor, ErrorEvent);
assert_equals(e.error, err);
assert_equals(e.message, "Uncaught TypeError: a message");
assert_equals(e.filename, start_href);
assert_greater_than(e.colno, 0);
assert_greater_than(e.lineno, 0);
});
navigation.onnavigate = t.step_func(e => {
e.intercept();
e.intercept({ handler: async () => {
await new Promise(r => t.step_timeout(r, 1));
return Promise.reject(err);
}});
e.intercept({ handler: () => new Promise(resolve => t.step_timeout(resolve, 1)) });
});
await navigation.navigate("#1").finished.catch(t.step_func(e => {
caught_rejection = true;
assert_equals(e, err);
}));
assert_true(onnavigateerror_called);
assert_true(caught_rejection);
}, "event.intercept() is called multiple times and one of the promises rejects");
</script>
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