Where is the filesystem in html5 stored on the real file system?

Question

If I use JavaScript to create a file on a HTML5 Filesystem, can I find it on the real file system of my computer?

Answer 1

originally I think all file is stored on a virtual file system , so files can be protected. but it's not. for chrome, file is placed at "C:\Users\user name\AppData\Local\Google\Chrome\User Data\Default\File System" with obfuscated name on windows 7. so you can operate on it as local file.