would it be possible to stop open shop from closing down unexpectedly when it has been use for some time causing the loss of any unsaved work or if not make all unsaved work recoverable

Usually OpenShop doesn't do this. Please describe the case more detailed. At which page are you? Which message do you get on close?

I think he had said like this, if we are working with product information page, we unexceptionably closing the working page. At this time the browser closing button, it should be idle.