canonical_links_with_fragments.html

<!DOCTYPE html>
<html>
<head>
  <link rel="canonical" href="https://example.com/canonical1.html#a1">
  <link rel="canonical" href="https://example.com/canonical2.html#a2">
</head>
<body>
</body>
</html>

chromium/content/test/data/render_frame_host/canonical_links_with_fragments.html