PrivateWindowCheck
Demo: https://jlynx.github.io/PrivateWindowCheck/
Javascript used to check weather a users browser is in private mode or not
This works on:
Windows
- Chrome
- FireFox
- Edge
- IE(11)
OS X
- Safari
Android
- Chrome
- Firefox
- Opera
iOS
- Safari
If the browser is not listed, then I have not tested it