%SCRIPTURL{"script"}%
https://spinquest.physics.lsa.umich.edu/twiki/bin/script
%SCRIPTURL{"viewauth"}%/%WEB%/%TOPIC%
which expands to https://spinquest.physics.lsa.umich.edu/twiki/bin/viewauth/TWiki/VarSCRIPTURL2
%SCRIPTURLPATH{"script"}%
instead, as it works with URL rewriting much better