Add host configuration to WSGIServer

Adding host parameter '0.0.0.0' enables compatibility on Firefox

Author: s-gbz

app.py

@@ -83,5 +83,5 @@ def upload():
  # app.run(port=5002, debug=True)
 
  # Serve the app with gevent
- http_server = WSGIServer(('', 5000), app)
+ http_server = WSGIServer(('0.0.0.0', 5000), app)
  http_server.serve_forever()