I am not so sure about what you are actually doing.
You can add local storage used by a domain by:
1. Go to http://helpx.adobe.com/flash-player/kb/find-version-flash-player.html
2. Right-click the animation provided there. (any Flash animation for that matter.)
3. Click Global Settings.
4. Select the Storage tab, and click Local Storage Settings by Site.
5. Click Add and add the website that you are accessing.