Hi all, the problem seems to be with the node_sockjs package.
If I replace the directory/files under /usr/share/nodejs/sockjs with the corresponding JS files created with npm from the official sockjs sources from github, the shiny-server works. npm uses CoffeeScript 1.12.7, Debian uses version 2.0.7. Possibly the node-sockjs bug 1016732 is still open. Sincerly Sebastian
