I have a user who is running into some problems on the Galaxy 101 tutorial at: https://usegalaxy.org/u/aun1/p/galaxy101.  Specifically, in Safari, it's prompting for a userid and password for each image (and the galaxy account doesn't work).  I can confirm this behavior myself.  On Chrome, there is no prompt, but no images show up.  Any suggestions would be quite welcome.  Hoping to give a good first impression...  ;-)

Lance Parsons - Scientific Programmer
134 Carl C. Icahn Laboratory
Lewis-Sigler Institute for Integrative Genomics
Princeton University