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<!DOCTYPE html>
<html>
<head>
<title>CSS integration - image from external stylesheet inserted via a ProcessingInstruction</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="never">
</head>
<body>
<p>Check that resources from external stylesheets (referenced from a
ProcessingInstruction) are loaded with the referrer and referrer policy
from the external stylesheet.</p>
<div class="styled"></div>
<script>
promise_test(function(css_test) {
var id = token();
var url_prefix = location.protocol + "//www1." + location.hostname + ":" + location.port;
var css_url = url_prefix + "/common/security-features/subresource/stylesheet.py?id=" + id;
var img_url = url_prefix + "/common/security-features/subresource/image.py" +
"?id=" + id + "&report-headers";
var processingInstruction = document.createProcessingInstruction("xml-stylesheet", "href=\"" + css_url + "\" type=\"text/css\"");
document.insertBefore(processingInstruction, document.firstChild);
return timeoutPromise(css_test, 1000)
.then(() => requestViaXhr(img_url))
.then(function(message) {
assert_own_property(message, "headers");
assert_own_property(message, "referrer");
assert_equals(message.referrer, css_url);
});
}, "Image from external stylesheet (from ProcessingInstruction).");
</script>
<div id="log"></div>
</body>
</html>
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