/proc/4/task/4/root/proc/thread-self/root/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 /.
281 0xd 0x7ffe6bfe0660 0x400 0x32d 0x0 0x8 0x7ffe6bfdf8e0 0x7f020d788ec8