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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="utils.js"></script>
<title>Client Hints Helper</title>
<body>
<script type="module">
const [key] = parseKeylist();
let iframe = document.createElement('iframe');
let p = new Promise((resolve, reject) => {
window.addEventListener('message', e => {
resolve(e.data);
});
});
iframe.src = 'client-hints-iframe-inner.sub.https.html';
document.body.appendChild(iframe);
const response = await p;
const result = {
'root-fenced-frame-headers': {
'sec-ch-viewport-width': '{{header_or_default(sec-ch-viewport-width, )}}',
'sec-ch-ua-reduced': '{{header_or_default(sec-ch-ua-reduced, )}}',
'sec-ch-ua-mobile': '{{header_or_default(sec-ch-ua-mobile, )}}',
},
'iframe-headers': response.headers,
};
writeValueToServer(key, JSON.stringify(result));
</script>
</body>