accept_ch_ua_iframe_sandbox_request.html

<!DOCTYPE html>
<html>
<!-- Prevent favicon fetch request. -->
<link rel="icon" href="data:;base64,=">
<head></head>
<body>
<iframe src="simple.html" id="test" sandbox></iframe>
</body>
</html>

chromium/chrome/test/data/client_hints/accept_ch_ua_iframe_sandbox_request.html