/proc/1
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 /.
1 (child_wrapper) S 0 1 1 0 -1 4194560 1002 309 4 0 0 1 0 0 20 0 1 0 398 3321856 472 18446744073709551615 93888942991792 93888943291472 140722147052128 0 0 0 0 4096 17474 1 0 0 17 0 0 0 0 0 0 93888943316040 93888943318448 93889940152320 140722147056426 140722147056659 140722147056659 140722147057632 0