title: pinterest url debugger causes redirect loop
body: <p>According to the pinterest documentation microdata in webistes has to be checked via pinterest's <code>url-debugger</code> at least once before pinterest starts to read it.</p>
  
  <p>Unfortunately I'm having some trouble with pinterest's debugger <a href="http://developers.pinterest.com/tools/url-debugger/" rel="nofollow noreferrer">here</a></p>
  
  <p>Even when I'm logged in the debugger page asks me to log in. After I did so the site keep reloading over and over again with a frequency of a few seconds. So I'm not even getting to load the debugger page.</p>
  
  <p>Is this a bug on pinterest's side or am I doing anything wrong? Can anyone reproduce the bug?</p>