title: TensorBoard error : path /[[_dataImageSrc]] not found
body: <p>I was trying to run TensorBoard example : mnist_with_summaries.py and when I tried to open an instance of TensorBoard I got this :</p>
  
  <p>command:
  'tensorboard --logdir=/output --host localhost --port=6006'</p>
  
  <p>output:
  'TensorBoard 1.5.1 at <a href="http://localhost:6006" rel="nofollow noreferrer">http://localhost:6006</a> (Press CTRL+C to quit)
  W0219 15:12:02.944875 Thread-1 application.py:273] path /[[_dataImageSrc]] not found, sending 404'</p>
  
  <p>When I try to open <a href="http://localhost:6006" rel="nofollow noreferrer">http://localhost:6006</a>, my browser crash.</p>
  
  <p>I am on Ubuntu 16.04, with tensorflow GPU and the 1.5.1 version</p>