/proc/self/root/proc/thread-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 /.
47 (node) S 2 2 0 0 -1 1077936448 7 0 0 0 0 2 0 0 20 0 11 0 4440 1793564672 28443 18446744073709551615 94833570238464 94833613998005 140727123599632 0 0 0 0 16781312 17922 1 0 0 -1 0 0 0 0 0 0 94833670598560 94833671484272 94834738917376 140727123604877 140727123605115 140727123605115 140727123607525 0