[Genome] url to password protected track file

[Ashish Agarwal]

Hi. I am trying to construct a url that references files on our password
protected server. For example:

http://genome.ucsc.edu/cgi-bin/hgTracks?db=ce4&position=chrI&hgt.customText=http://myserver.org/file.wig

However, myserver.org requires a password and an "Authorization Required"
message is displayed on the top the genome browser page. In the list
archives, I found a message stating that the format

   protocol://user:password at server.com/somepath

can be used, but I cannot get this to work. What exactly is the syntax? I
tried providing "protocol://user:password at myserver.org/file.wig" as the
value for hgt.customText but that does not work. Without the quotes, I get
an "Unrecognized format" error. With the quotes, no error message is
displayed but neither is the track.

Thank you in advance for any help.