App router static site generation fails for the Syslog

[ahnl]

As it can be seen from the build log, the route /syslog/[slug] has no pages underneath it. This defeats the purpose of SSG as those routes will be generated assumably on first visit as SSR.

Culprit somewhere in https://github.com/Testausserveri/testausserveri.fi/blob/coal/app/syslog/%5Bslug%5D/page.tsx.