localStorage / SQLDatabase no longer persistent after iOS 5.01 Update

Dear Dev

WebKit data (localstorage or local SQLite) are now stored in Library/ Caches folder (instead of Library/WebKit folder). This is a big problem for all apps using UIWebView and storing user data, because they will no longer be backed up and may be deleted. There are a lot of apps using localstorage or SQLite as a critical feature.

The SQLite database gets deleted because the database is saved in a location on the filesystem which Apple does not consider to contain persistent data.

Steps to Reproduce:

In a UIWebView, create a new DB or use localStorage with JavaScript.
You can see that the WebKit data is now stored in Library/Caches :

Expected Results:

We should at least specify the directory of WebKit data (and to set it
to Documents/ for critical data)

Actual Results:

The WebKit data are stored in Library/Caches folder, and can be
deleted

Regression:
To migrate database location from Library/Caches to some other location such as Documents.

Ref: http://developer.apple.com/icloud/documentation/data-storage/
https://devforums.apple.com/thread/137882?start=0&tstart=0