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<!DOCTYPE html>
<meta charset=utf-8>
<title>window.open in sandbox iframe</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<body>
<script>
setup({single_test: true});
// check that the popup's URL is not loaded
const uuid = token();
async function assert_popup_not_loaded() {
const response = await fetch(`/fetch/api/resources/stash-take.py?key=${uuid}`);
assert_equals(await response.json(), null); // is "loaded" if it loads
}
// check for message from the iframe
window.onmessage = e => {
assert_equals(e.data, 'null', 'return value of window.open (stringified)');
step_timeout(async () => {
await assert_popup_not_loaded();
done();
}, 1000);
};
const iframe = document.createElement('iframe');
iframe.sandbox = 'allow-scripts';
iframe.srcdoc = `
<script>
let result;
try {
result = window.open('/fetch/api/resources/stash-put.py?key=${uuid}&value=loaded', '_blank');
} catch(ex) {
result = ex;
}
parent.postMessage(String(result), '*');
<\/script>
`;
document.body.appendChild(iframe);
</script>
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