/proc/2/root/proc/4/task/9/root/proc/self/root/proc/thread-self/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 11 1 1cpu 7 52 1cpuacct 7 52 1blkio 6 49 1memory 10 65 1devices 5 49 1freezer 9 4 1net_cls 2 1 1perf_event 4 1 1net_prio 2 1 1hugetlb 3 1 1pids 8 49 1