title: window.open with target '_blank' opens a new browser window
body: <p>I am trying to open an link in new browser tab (not in new window).</p>
  
  <p>When I place an link on page like</p>
  
  <pre><code>&lt;a href="#" onclick="window.open('http://www.google.com', '_blank');"&gt; Click Here&lt;/a&gt;
  </code></pre>
  
  <p>when user click on link it will open google in new browser tab. That's fine</p>
  
  <p>BUT</p>
  
  <pre><code>$.ajax({
     type: "POST",
     url: someURL,
     data: {somedata},
     contentType: "application/json; charset=utf-8",
     dataType: "json",
     success: function (response) {
      window.open('http://www.google.com', '_blank'); // it's always open in new browser window and I want a new tab
     },
     failure: function (response) {
        alert(response);
        return;
     }
  });  
  </code></pre>
  
  <p>When I try this within an AJAX web method, it always opens it in new browser window; but I want to open it in new tab as it's working for above example.</p>
  
  <p>I understand this is browser specific functionality but somehow I need to accomplish this. </p>