Flash player can't work with protocol-less url
1. Setup player for using flash (primary:'flash')
2. Setup file as protocol-less url ('//site.com/path/to/file.mp4')
3. Play video
Flash player will add host to file path (http://site.com//site.com/path/to/file.mp4) and fails with "File not found" error. It treats protocol-less url as relative url.