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<!DOCTYPE html>
<html>
<head>
<title>Recursively repeated CORS requests with failed preflights should never result in unexpected behavior</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
</head>
<body>
<script type="text/javascript">
let requestCount = 0;
const requestMax = 10;
async_test((test) => {
function preflightRequest() {
const xhr = new XMLHttpRequest;
xhr.onload = test.unreached_func("Request succeeded unexpectedly.");
xhr.onerror = test.step_func(() => {
assert_equals(xhr.status, 0);
if (++requestCount >= requestMax) {
test.done();
return;
}
preflightRequest();
});
xhr.open("GET", get_host_info().HTTP_REMOTE_ORIGIN +
"/xhr/resources/access-control-basic-denied.py");
xhr.send();
}
preflightRequest();
});
</script>
</body>
</html>
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