/proc/self/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 33174 0 753 0 275 46 0 0 20 0 11 0 175824 1823604736 34804 18446744073709551615 94193244721152 94193288480693 140720492201584 0 0 0 0 16781312 17922 0 0 0 17 1 0 0 2 0 0 94193345081248 94193345966960 94193908015104 140720492205453 140720492205691 140720492205691 140720492208101 0