chromium/third_party/blink/web_tests/external/wpt/appmanifest/file_handlers-member/file_handlers-member-manual.tentative.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <link rel="manifest" href="resources/file_handlers-member.webmanifest" />
    <title>File Handling Web Platform Test</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="resources/file_handlers-member.js" type="module"></script>
    <style>
      body {
        margin: 2em;
      }

      ol {
        line-height: 200%;
      }
    </style>
  </head>
  <body>
    <h1>
      File Handling Test
    </h1>
    <div class="section">
      <h2>
        Instructions (details may be OS-dependent)
      </h2>
      <ol>
        <li>Install this site as a PWA</li>
        <li>Download <a href="resources/file_handlers-sample-file.txt" download>this file</a></li>
        <li>
          In your file browser, right click the downloaded file (<code>file_handlers-sample-file.txt</code>)
        </li>
        <li>Select <b>"Open with"</b> &gt; <b>"File Handling WPT"</b></li>
        <li>
          If your browser prompts you to allow <b>File Handling WPT</b> to open
          the file, choose allow
        </li>
        <li>The app window that opens should indicate success of this test.</li>
      </ol>
    </div>
  </body>
</html>