/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 /.
CPU0 CPU1 HI: 0 0 TIMER: 18816 15666 NET_TX: 0 0 NET_RX: 226180 224621 BLOCK: 189 2884 IRQ_POLL: 0 0 TASKLET: 84 3519 SCHED: 36880 35373 HRTIMER: 0 0 RCU: 24169 23964