/proc/4/task/4/root/proc/self
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
4 (node) R 2 2 0 0 -1 4194560 267160 0 749 0 3500 582 0 0 20 0 11 0 108332 1786560512 28401 18446744073709551615 94806135144448 94806179055541 140731646550432 0 0 0 0 16781312 17922 0 0 0 17 1 0 0 2 0 0 94806234508992 94806235377776 94806434082816 140731646551489 140731646551727 140731646551727 140731646554085 0