norm

Hi everyone, I'm having trouble seeing the list of extensions as shown on [src/jupyter_nbextensions_configurator/static/nbextensions_configurator/icon.png](https://github.com/Jupyter-contrib/jupyter_nbextensions_configurator/raw/master/src/jupyter_nbextensions_configurator/static/nbextensions_configurator/icon.png) Instead I'm seeing a different page  Extension seems to be loading ok: ``` [I 13:21:01.831...

installed fine on 16.04