%SCRIPTURL{"script"}%
https://wiki.epap.nms.kcl.ac.uk/do/script
%SCRIPTURL{"viewauth"}%/%WEB%/%TOPIC% which expands to https://wiki.epap.nms.kcl.ac.uk/do/viewauth/TWiki/VarSCRIPTURL2
%SCRIPTURLPATH{"script"}% instead, as it works with URL rewriting much better