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<!doctype html>
<html>
<script>
async function no_cors_should_be_rejected() {
let thrown = false;
try {
const resp = await fetch('top.txt');
} catch (e) {
thrown = true;
}
if (!thrown) {
throw Error('fetching "top.txt" should be rejected.');
}
}
async function null_origin_should_be_accepted() {
const url = 'top.txt?pipe=header(access-control-allow-origin,null)|' +
'header(cache-control,no-store)';
const resp = await fetch(url);
}
async function test() {
try {
await no_cors_should_be_rejected();
await null_origin_should_be_accepted();
parent.postMessage('PASS', '*');
} catch (e) {
parent.postMessage(e.message, '*');
}
}
test();
</script>
</html>