title: Jmeter authentication required issues
body: <p>Getting this pop-up, how to handle it?
  <img src="https://s33.postimg.org/6xrmtmk7j/Fv68a.png" alt=""></p>
  
  <p>This pop-up comes for all browsers. I try to solve this issue by using proxy user credentials use but the same issue gets reproduced.</p>
  
  <p>I follow below steps:</p>
  
  <ol>
  <li>Open CMD &amp; run JMeter with user (jmeter -H 10.21....  -P 8080 -u username -a password)</li>
  <li>Open JMeter and again same set HTTP authentication in ui and also not added some case .</li>
  <li>Change proxy of browser and use 9090 &amp; localhost.
  
  <h2> 4. Start JMeter proxy &amp; try to creation script then that issue come.</h2></li>
  </ol>
  
  <p>Proxy server I used corporate server IP &amp; port which are apply on the company network.</p>
  
  <hr>
  
  <p>Please suggest what can I do? If I start normal GUI JMeter without cmd with username &amp; password then connection gets refused.</p>