/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 11827 0 739 0 56 11 0 0 20 0 11 0 18245 1711632384 23820 18446744073709551615 94775011311616 94775055222709 140725234340096 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 2 0 0 94775110676160 94775111544944 94775833178112 140725234341312 140725234341550 140725234341550 140725234343909 0