I've been developing client-side applications using HTML and Javascript, and I've been trying to find a way to automatically save local storage data to a flash drive or other storage device. Is it possible to save the local storage for an HTML document on a USB flash drive (instead of in the browser cache) so that the web page with the locally stored data can be accessed anywhere, or sent as an email attachment? If not, is there another way to keep persistent data for a specific web page on a flash drive?
Also, I'd like the local storage to be portable across web browsers, instead of depending on a specific (portable) web browser installation (so that all the local storage data won't depend on that specific installation of the web browser.)