/proc/4
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 20950 0 748 0 190 33 0 0 20 0 11 0 970 1806286848 28221 18446744073709551615 93972248788992 93972292700085 140729095556736 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 3 0 0 93972348153536 93972349022320 93972557750272 140729095558541 140729095558779 140729095558779 140729095561189 0