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Test Info:

<!DOCTYPE html>
<html>
<head>
<title>CSS integration - Child css from external stylesheet</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<!-- Common global functions for referrer-policy tests. -->
<script src="/common/security-features/resources/common.sub.js"></script>
<meta name="referrer" content="origin">
</head>
<body>
<p>Check that child css are loaded with the referrer and referrer policy
from the external stylesheet.</p>
<div class="styled"></div>
<script>
promise_test(function(css_test) {
let id = token();
let url_prefix = location.protocol + "//www1." + location.hostname + ":" + location.port;
let css_url = url_prefix +
"/common/security-features/subresource/stylesheet.py?id=" + id +
"&import-rule" + "&referrer-policy=no-referrer";
let check_url = url_prefix + "/common/security-features/subresource/stylesheet.py" +
"?id=" + id + "&report-headers";
return new Promise(resolve => {
let link = document.createElement("link");
link.href = css_url;
link.rel = "stylesheet";
link.onload = resolve;
document.head.appendChild(link);
})
.then(() => timeoutPromise(css_test, 1000))
.then(() => requestViaXhr(check_url))
.then(function(message) {
assert_own_property(message, "headers");
assert_equals(message.referrer, undefined);
});
}, "Child css from external stylesheet.");
</script>
<div id="log"></div>
</body>
</html>