/proc/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 /.
CPU0 CPU1 HI: 0 0 TIMER: 989 1413 NET_TX: 0 0 NET_RX: 11877 13900 BLOCK: 156 2415 IRQ_POLL: 0 0 TASKLET: 7 169 SCHED: 2388 2763 HRTIMER: 0 0 RCU: 3330 3398