Collect the app_name and URL of the web chat server. You should be able to access it in the following manner:

Open the browser and try to access

<SERVER_URL>?app_name=<APP_NAME>

For example:

app_name: TxContact
server_url: https://neo.txcontact.com/txnjswebchat

Access it like this:

https://neo.txcontact.com/txnjswebchat?app_name=TxContact