/proc/4/task/10/root/proc/4/task/5/root/proc/self/task/5/root/proc
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 /.
#subsys_name hierarchy num_cgroups enabledcpuset 7 1 1cpu 10 59 1cpuacct 10 59 1blkio 2 56 1memory 4 71 1devices 9 56 1freezer 8 4 1net_cls 5 1 1perf_event 11 1 1net_prio 5 1 1hugetlb 3 1 1pids 6 56 1