Treeview/Link problem using hostname to access wiki inside URL-path based virtual mode

I found a problem of treeview in URL path based virtual mode. When using
IP to access, the treeview works fine in the "Document Index" and the
"Link" widget, i.e. accessing https://<IP Address>:8443/xwiki/wiki/<Wiki
Name>/view/Main/AllDocs?view=tree is fine. However, if using "hostname",
treeview breaks: it shows "loading data...." and stuck, i.e. accessing
https://<Hostname>:8443/xwiki/wiki/<Wiki
Name>/view/Main/AllDocs?view=tree has problem. The problem happens when
trying to link a document in the editor