processing-instruction.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /referrer-policy/css-integration/image/processing-instruction.html - WPT Dashboard Interop Dashboard

<!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>