> > [mhttpd,ERROR] [mhttpd.cxx:563:rread,ERROR] Cannot read file '/root', read of 
> > 4096 returned -1, errno 21 (Is a directory)
> 
> On some linux systems, "/root" exists, it is a directory used as the home directory 
> of user "root" (~root is /root; traditional UNIX has ~root as /).
> 

I just got burned by the same problem on MacOS. mhttpd odb editor cannot open ODB "/System" 
because on MacOS there is a subdirectory called "/System".

So the question is why did mhttpd suddenly started serving files from the main URL?

K.O.