Do not show content after refreshing

Hi,

I have done some test on local server and your plugin works fantastic. I just wonder if there is a possibility of doing one trick with it.

I sell some kind of ebooks. I would like to show the whole of its content to my customers for some time (i.e. 10 min) so they could make up their minds but couldn’t copy the content. But if someone refresh the site then will see the content again. Is there any way to make the content unavailable after hiding it (even by site refresh)?

Best regards,
Kris

https://ww.wp.xz.cn/plugins/timed-content/