/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 12694 0 757 0 72 16 0 0 20 0 11 0 4012 1778745344 22776 18446744073709551615 93925213863936 93925257775029 140722532753088 0 0 0 0 16781312 17922 0 0 0 17 1 0 0 4 0 0 93925313228480 93925314097264 93925524488192 140722532754880 140722532755118 140722532755118 140722532757477 0