Very good question..
I should be that way, but when I just RUN LAYOUT from .capx file, there is no server running with it yet I am able to take snap shot and download it to my pc.
So I think that the snapshot is kept in a form of data until we download it into a from of image file. And when you download it, it only goes into your device (Download folder), while I want it to be saved into some specific directory (or into server directory).
It doesn't need to be from UserMedia Snapshot, my intention is change Usermedia object to FILE CHOOSER to select file from my device and upload it to specific URL.