title: chrome window.open(url '_blank') opens new window
body: <p>I try to open 3 new tabs (at the same time) via chrome, EI, firefox, each tab will return a file.
  ie and mozilla open 3 new tabs (it is ok).
  chrome opens 1 tab and two windows.</p>
  
  <p>Script:
      window.open(url '_blank') or  window.open(url '_tab') 
  behaviour is the same</p>
  
  <p>Is there any way to open 3 new tabs in chrome ?</p>