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