We require to have freezing popup with alert on updated browsers.
When ever the page is live, it should not let the person to close the page anyhow by clicking it to any closing option for the live browser.
Only feature which should let the browser to close, is to have force quit through task manger.
Give all details of your project website. It may be null theme or any auto script called in your site. Give a details like use any framework or anything else. share us credentials for that.
Thanks