Using Kerika with Safari in “Private” mode can result in some odd behavior, and that is entirely due to the way Safari works — it’s pretty much out of Kerika’s control 🙁
The underlying problem is that Safari doesn’t allow Web apps to use local storage (cache) when the browser is in “Private” mode.
Since Kerika relies upon local storage to provide a smooth, real-time effort, this can compromise the user experience if you use Safari in Private mode.
To learn more, check out this Stack Overflow article.