title: Magento Connect extensions install causes login loop
body: <p>I cannot install an extension, it causes a login loop to appear in console.</p>
  
  <p>Screenshots before and after clicking login in console. Any ideas?</p>
  
  <p>Have already tried chmod everything to 777.</p>
  
  <p>Running 1.7.0.2</p>
  
  <p><img src="https://i.stack.imgur.com/A877f.jpg" alt="">
  <img src="https://i.stack.imgur.com/wUdd9.jpg" alt=""></p>