setDownloadExtensions is not wokring

i have enabled the setDownloadExtensions as shown below

var _paq = window._paq || [];

  /* tracker methods like "setCustomDimension" should be called before "trackPageView" */

  _paq.push(["setDocumentTitle", document.domain + "/" + document.title]);

  _paq.push(["setCookieDomain", "*.ingbtcpic5vw241"]);

  _paq.push(["setDomains", ["*.ingbtcpic5vw241/InstalledBase/home"]]);

  _paq.push(['trackPageView']);

  _paq.push(['enableLinkTracking']);

  _paq.push(['trackVisibleContentImpressions', true, 750]);

  _paq.push(['trackGoal', 1]);

  _paq.push(['setUserId', '3200651']);

  _paq.push(['enableLinkTracking']);

  _paq.push(['enableHeartBeatTimer']);

  _paq.push(['setDownloadClasses', "download-text"]);

  _paq.push(['setDownloadExtensions', "jpg|png|gif|csv"]);

  (function() {

    var u="//ingbtcpic5vw241:81/matomo/";

    _paq.push(['setTrackerUrl', u+'matomo.php']);

    _paq.push(['setSiteId', '4']);

    var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];

    g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);

  })();

but the is not tracking the download not sure what am i missing should enable a option in dashboard as well