[Webkit-unassigned] [Bug 157010] QuotaExceededError when saving to localStorage in private mode - leaks users browsing preference

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157010

--- Comment #9 from Darin Adler <darin at apple.com> ---
We do understand that Chrome’s Incognito model is "temporary user profile that is removed when window is closed".

Our concern for the Private Browsing features that pre-date Incognito was that if a website stored important, document-like data in localStorage, this because could be a problem, not for the website developer, but for the web browser user. Even though the person is using a private browsing mode they might not understand that closing a window or quitting the web browser has a side effect of deleting all their documents. It seemed that getting an error earlier would help prevent someone from building up some work that then is unexpectedly lost.

In practice, the WebKit engineers may be misunderstanding the type of data that websites would store in localStorage. Or misunderstanding the expectations people will bring to private browsing features.

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