I have selected the "Keep local data only until I quit my browser" option in Chrome settings under Content Settings -> Cookies.
When I exit Chrome, I can see that every website file in my Local Storage directory is deleted. All of them except for "https_www.google.com_0.localstorage" and "https_www.google.com_0.localstorage-journal".
So, I have two questions:
1) Why? This does not seem fair to other websites.
2) What is the best way to disable this insidious behavior?
UPDATE-1: Here is what I'm doing for now. I created a batch file with the following contents and I simply use that to launch Chrome:
del "%LocalAppData%\Google\Chrome\User Data\Default\Local Storage\*.google.com_0.localstorage" del "%LocalAppData%\Google\Chrome\User Data\Default\Local Storage\*.google.com_0.localstorage-journal" start "" "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"