chromium/third_party/blink/web_tests/external/wpt/content-security-policy/reporting/report-blocked-uri.html

<!DOCTYPE html>
<html>
<head>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <title>Blocked relative images are reported correctly</title>
    <!-- CSP headers
Content-Security-Policy: script-src 'self' 'unsafe-inline'
Content-Security-Policy-Report-Only: img-src 'none'; script-src 'self' 'unsafe-inline'; report-uri /reporting/resources/report.py?op=put&reportID={{$id}}
-->
</head>
<body>
    <img src="../support/pass.png">
    <script async defer src='../support/checkReport.sub.js?reportField=violated-directive&reportValue=img-src%20%27none%27'></script>
</body>
</html>