third_party/web_platform_tests/html/browsers/windows/noreferrer-cross-origin-manual.html

<ol>
 <li><p>After clicking these two links in order a single browsing context should be open showing
 <code>example.org</code>:
 <a target=doesnotmatter href="http://example.com/">one</a>,
 <a target=doesnotmatter href="http://example.org/">two</a>.

 <li><p>After clicking these two links two browsing contexts should have been opened:
 <a rel=noreferrer target=reallydoesnotmatter href="http://example.com/">one</a>,
 <a rel=noreferrer target=reallydoesnotmatter href="http://example.com/">two</a>.
</ol>