Update app.py

app.py

@@ -314,7 +314,7 @@ async def get_proxy():
                     if (!msg.incomingKey || msg.incomingKey !== expectedKey) {
                         ws.send(JSON.stringify({
                             request_id: msg.request_id,
-                            content: "Error: Invalid authentication: \nexpectd" + expectedKey + "\nreceived: " + msg.incomingKey,
+                            content: "Error: Invalid authentication: --expected" + expectedKey + "--received: " + msg.incomingKey,
                             source: 'proxy',
                             destination: msg.source
                         }));