/proc/4/task/5/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 /.
11:memory:/10:cpuset:/9:freezer:/8:cpu,cpuacct:/7:pids:/6:devices:/5:net_cls,net_prio:/4:blkio:/3:perf_event:/2:hugetlb:/1:name=systemd:/