How can I add a warning notification before a user accidentally leaves the form page?

I would like to give users a pop-up warning before leaving the form page (in any way other than actually submitting the forms).

I should say something like "Are you sure you want to leave the page without submitting the form?"

Please advise.

If using the form URL alone, it's currently not possible to have this popup. However, if you embed your form in your website, you can create a script that will show a warning message when the user tries to reload the page or close the browser.

This would require you downloading the form source https://www.jotform.com/help/104-How-to-get-the-Full-Source-Code-of-your-Form.

Reference guide: https://forums.asp.net/t/1521439.aspx?

I hope that helps. Let us know if you have any questions or if you need further assistance.