title: Zkoss - open url in browser's new tab
body: <p>I want to open url in new tab, from server side. I'm using this line:</p>
  
  <pre><code>Executions.getCurrent().sendRedirect(url, "_blank");
  </code></pre>
  
  <p>This works perfect for Firefox but tries to open a new window in Chrome/IE. Is it possible to always open the url in new tab?</p>