chromium/chrome/test/data/save_page/frames-nested.htm

<!doctype html>
<html>
<head></head>
<body>
  <h1>Test page features</h1>

  When rewriting links for top-level frame, we need to use links of the
  form: ./foo_files/some_file.png
  When rewriting links for other frames (i.e. for frame getting saved
  into ./foo_files/bar.htm), we need to use links of the form:
  ./some_other_file.png (i.e. without "foo_files").

  <h1>Test content</h1>

  Content verification marker:
  frames-nested.htm: 4388232f-8d45-4d2e-9807-721b381be153
  <br>
  <br>

  <iframe src="frames-nested2.htm" width="400" height="400"></iframe>
  <img src="1.png"/>
</body>
</html>