This approach was used for years by Spotify[1], to allow websites embedding their player to load content directly into a running instance of the desktop app. [

This approach was used for years by Spotify[1], to allow websites embedding their player to load content directly into a running instance of the desktop app. [1] http://cgbystrom.com/articles/deconstructing-spotifys-builtin-http-server/ http://cgbystrom.com/articles/deconstructing-spotifys-builti...