cubicweb-brainomics #3486614 Web interface looks bad in "server" mode, OK in "user" mode [deprecated]

Unless I'm doing something wrong, applications based on brainomics look good in "user" mode but not in "server" mode. All the CSS machinery seems to be missing in "server" mode, resulting in a '90 look!

prioritynormal
typebug
done in<not specified>
load0.000
load left0.000
closed by<not specified>