/proc/2/root/proc/4
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 /.
281 0xd 0x7ffd1c4c4da0 0x400 0x197 0x0 0x8 0x7ffd1c4c4010 0x7feb2751aec8