title: function Window.focus doesn't work in IE (8, 9, 10, 11)
body: <p>Here is my code, and this code to open new tab and focus on it.</p>
  
  <ul>
  <li>If tab is not opened yet, I will open it with specify name.</li>
  <li>If tab is opened, I will focus on it by using window.focus();</li>
  </ul>
  
  <p>Quick test: <a href="http://jsfiddle.net/u2jd2oLw/1/" rel="nofollow">http://jsfiddle.net/u2jd2oLw/1/</a></p>
  
  <p>Javascript Code</p>
  
  <pre><code>var tabs = [];
  $('#btnOpenTab').on('click', function(){
      openTab('http://google.com.vn', 'GG');
  });
  
  
  function openTab(url, tabNm) {
      try {
          if (tabs[tabNm]) {
              tabs[tabNm].focus();
          } else {
              var mTab = window.open(url, tabNm);
              tabs[tabNm] = mTab;
              tabs[tabNm].focus();
          }
      } catch(e) {
          alert(e.message);
      }
  }
  </code></pre>
  
  <p>HTML Code</p>
  
  <pre><code>&lt;button id="btnOpenTab"&gt;Open Tab&lt;/button&gt;
  </code></pre>
  
  <p>Actually, I check in IE11, it occurred that "<strong>Access is denied</strong>"</p>
  
  <p>And I tried to turn off option: "Turn on Pop-up Blocker" by un-check CheckBox.</p>
  
  <p>Do you have any suggestion?</p>
  
  <p>Thanks!!</p>