title: Error status code 407 does not display in chrome
body: <p>I am trying error throw servlet program in java. I get all other errors in chrome browser except <code>error 407(SC_PROXY_AUTHENTICATION_REQUIRED)</code></p>
  
  <p>My servlet program is simple and it just throws </p>
  
  <pre><code>res.sendError(HttpServletResponse.SC_PROXY_AUTHENTICATION_REQUIRED, "important_parameter needed");
  </code></pre>
  
  <p>and I get <code>This webpage is not available</code>
  But for all other error codes, I get the messages correctly.</p>