Screenshot blocker function

Need help
1

Hello I researched a bit a topic of preventing a user from taking screenshots in web app, and I found out that is possible, but code that enables that function seems to be work if I put it to the header of an app.

Any ideas how make it happen or advices what to try ?

Thanks in advance

2

Not possible. Screenshots are defined at the operating system level, not the browser level. The browser isn’t aware if the operating system is taking a screenshot.