<!DOCTYPE html>
<html>
<head>
  <title>Delegate-CH meta-equiv injection test</title>
  <meta http-equiv="Delegate-CH" content="">
</head>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<script>
// Even though the next line injects an "Delegate-CH" meta-equiv header, the
// browser should NOT attach the specified client hints in the request headers
// because javascript injected delegate-ch meta-equiv headers are not trusted.
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="Delegate-CH" content="sec-ch-ua-arch;sec-ch-ua-platform;sec-ch-ua-model">';
document.head.innerHTML += '<meta http-equiv="Delegate-CH" content="sec-ch-ua-full-version;sec-ch-ua-bitness;sec-ch-ua-full-version-list">';
document.write('<meta http-equiv="Delegate-CH" content="sec-ch-ua-platform-version;sec-ch-prefers-color-scheme;sec-ch-prefers-reduced-motion;sec-ch-viewport-height">');

// resources/echo-client-hints-received.py sets the response headers depending on the set
// of client hints it receives in the request headers.
promise_test(t => {
  return fetch("/client-hints/resources/echo-client-hints-received.py").then(r => {
    assert_equals(r.status, 200)
    // Verify that the browser does not include client hints for javascript
    // injected headers on the XHR.
    assert_false(r.headers.has("device-memory-received"), "device-memory-received");
    assert_false(r.headers.has("device-memory-deprecated-received"), "device-memory-deprecated-received");
    assert_false(r.headers.has("dpr-received"), "dpr-received");
    assert_false(r.headers.has("dpr-deprecated-received"), "dpr-deprecated-received");
    assert_false(r.headers.has("viewport-width-received"), "viewport-width-received");
    assert_false(r.headers.has("viewport-width-deprecated-received"), "viewport-width-deprecated-received");
    assert_false(r.headers.has("rtt-received"), "rtt-received");
    assert_false(r.headers.has("downlink-received"), "downlink-received");
    assert_false(r.headers.has("ect-received"), "ect-received");
    assert_false(r.headers.has("prefers-color-scheme-received"), "prefers-color-scheme-received");
  });
}, "Delegate-CH meta-equiv injection test");

</script>
</body>
</html>
