Handle non-dict payloads

Author: bergie

python/runtime.py

@@ -106,7 +106,7 @@ def on_message(self, message):
 
     def send(self, protocol, command, payload):
         """Send a message to UI/client""" 
-        if 'secret' in payload:
+        if isinstance(payload, dict) and 'secret' in payload:
             del payload['secret']
         m = json.dumps({'protocol': protocol, 'command': command, 'payload': payload})
         self.ws.send(m)