[galaxy-user] displaying ucsc tracks when using external auth

Hi All, When attempting to display a custom track on the UCSC genome browser, galaxy generates a URL such as... http://genome.ucsc.edu/cgi-bin/hgTracks?db=hg18&position=chr1:1-1000&hgt.customText=http%3A%2F%2Fgalaxy.example.com%2Froot%2Fdisplay_as%3Fid%3D171%26display_app%3Ducsc The first problem I have is that the base url is wrong for the customText - I am using https - is there a way to set that? The customText parameter is the bit that allows UCSC to pick up the data - but it is not going to get past the external auth. Is there a reasonable way to fix this? I suppose there must be a way to bypass the auth if the request comes from UCSC and looks like a certain URL, but is there a better way? thanks, James