make it easier for customers to close the chat window (and leave feedback)
Right now, when the customer wants to leave the Chat, they probably just close the window using the browser's close command, i.e. hitting the X at the top-right, or hitting Ctrl-F4, Ctrl-W, or Alt-F4.
This makes it very unlikely that the customer will leave feedback (ratings).
The way Zoho SalesIQ provides for closing the chat is to hit the little + button, then hit the On/Off button. Only then will they get to the feedback/ratings screen.
I find it unlikely that customers will do that.
My suggestion is that Zoho SalesIQ provide a more visible/obvious way to close the chat window.