Can anyone please help me with rasa wedge?i need some help the wedge is at some how confusing

the rasa wedge i clone from github is confusing …when i refresh the page the past conversation is existing and when i change the params the last conversation comes when i open the chat wedge…why is that…if we can solve it how can we solve it?

The reason for this is that your sender_id is tied to your browser. For local testing, just open the chat widget in an incognito window every time to get an empty session.

Sorry didnt get u…can you explain me a little bit