fix trailing / bug

[lastlink]

if no slug don't trail a /

[igeligel]

Hey @lastlink the Build is failing since slug is not contributed in this example function, unfortunately.

[lastlink]

Is this from the unit tests?

[igeligel]

Nahh, you can run yarn run build or npm run build. This is also where netlify failed. The variable slug is just not available in this scope.