/proc/thread-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) R 2 2 0 0 -1 4194560 343916 0 747 0 9719 1233 0 0 20 0 11 0 10200 2394165248 172022 18446744073709551615 94013057269760 94013101180853 140727836462528 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 3 0 0 94013156634304 94013157503088 94013865242624 140727836468621 140727836468859 140727836468859 140727836471269 0