The graph doesn't get updated

[aseveryn]

Thanks for a great add-on to the Keras library!

After trying it out I found that the graph displays only the first point and doesn't get updated.
The graph displayed at the localhost shows only the first point, however it doesn't get updated when a new point is being pushed to the server.
In the command line where I run python api.py I can verify that the updates are received correctly by the callback but the graph doesn't display any updates and remains static:

127.0.0.1 - - [2015-09-25 08:00:09] "POST /publish/epoch/end/ HTTP/1.1" 200 117 0.002720
127.0.0.1 - - [2015-09-25 08:00:22] "POST /publish/epoch/end/ HTTP/1.1" 200 117 0.000664
127.0.0.1 - - [2015-09-25 08:00:35] "POST /publish/epoch/end/ HTTP/1.1" 200 117 0.000650
127.0.0.1 - - [2015-09-25 08:00:47] "POST /publish/epoch/end/ HTTP/1.1" 200 117 0.000741
127.0.0.1 - - [2015-09-25 08:00:59] "POST /publish/epoch/end/ HTTP/1.1" 200 117 0.000679