/proc/2/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) S 2 2 0 0 -1 4194560 21006 0 752 0 123 26 0 0 20 0 11 0 483 1789063168 26505 18446744073709551615 94898468552704 94898512463797 140729722954208 0 0 0 0 16781312 17922 0 0 0 17 1 0 0 3 0 0 94898567917248 94898568786032 94898966888448 140729722955200 140729722955438 140729722955438 140729722957797 0