pdf_iframe_csp.html | Explore in Territory

<html>
  <head>
    <title>TabWithEmbeddedPdf</title>
    <meta http-equiv="Content-Security-Policy" content="object-src 'none'">
  </head>
  <body>
    <iframe src="test.pdf"></iframe>
  </body>
</html>

chromium/chrome/test/data/pdf/pdf_iframe_csp.html