http_equiv_accept_ch_injection.html

<html>
<head>
    <link rel="icon" href="data:;base64,=">
    <meta http-equiv="Accept-CH" content="">
</head>
<body>
    <script type="text/javascript">
        document.getElementsByTagName('meta')[0].setAttribute("content", "dpr,sec-ch-dpr,device-memory,sec-ch-device-memory,viewport-width,sec-ch-viewport-width,rtt,downlink,ect");
        document.head.outerHTML += '<meta http-equiv="Accept-CH" content="sec-ch-ua-arch,sec-ch-ua-platform,sec-ch-ua-model">';
        document.head.innerHTML += '<meta http-equiv="Accept-CH" content="sec-ch-ua-full-version,sec-ch-ua-bitness,sec-ch-ua-full-version-list,sec-ch-ua-wow64,sec-ch-ua-form-factors">';
        document.write('<meta http-equiv="Accept-CH" content="sec-ch-ua-platform-version,sec-ch-prefers-color-scheme,sec-ch-prefers-reduced-motion,sec-ch-viewport-height,sec-ch-prefers-reduced-transparency">');
        document.body.innerHTML += '<img src="non-existing-image.jpg"></img>';
    </script>
</body>
</html>

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