title: Usage of file protocol in HTTP request
body: <p>Reading file using <a href="https://jmeter.apache.org/usermanual/component_reference.html#HTTP_Request" rel="nofollow noreferrer">HTTP Request</a> is suggested for <a href="http://jmeter.apache.org/usermanual/hints_and_tips.html#variable_and_threads" rel="nofollow noreferrer">Passing variables between threads</a>.</p>
  
  <blockquote>
    <p>For example you could use the Save Responses to a file listener or perhaps a BeanShell PostProcessor in one thread, and read the file using the HTTP Sampler "file:" protocol, and extract the information using a PostProcessor</p>
  </blockquote>
  
  <p>Which is working, but should the warning in doc be ignored?</p>
  
  <blockquote>
    <p>Note: the FILE protocol is intended for testing purposes only. It is handled by the same code regardless of which HTTP Sampler is used.</p>
  </blockquote>
  
  <p>Is/when it safe/good practice to use file protocol or is it deprecated/bad practice?</p>