/proc/self/task/4/root/proc/2/root/proc/self/task/7/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 9 1 1cpu 7 59 1cpuacct 7 59 1blkio 11 56 1memory 3 75 1devices 5 56 1freezer 8 4 1net_cls 4 1 1perf_event 10 1 1net_prio 4 1 1hugetlb 2 1 1pids 6 56 1