The issue is probably that you haven’t configured your URLs to handle the routes that are defined in React Router. In your Django urls.py you should be using a catch all to match all URLs to your index template
urlpatterns += [
# match the root
url(r'^$', base_view),
# match all other pages
url(r'^(?:.*)/?$', base_view),
]
The base_view would be a view function that renders a template which includes your bundled app.