Add cacheDirectories in package.json (from Heroku support). cc @robert.dolca
Add cacheDirectories in package.json (from Heroku support). cc @robert.dolca

infoeducatie/infoeducatie-ui,palcu/infoeducatie-ui,palcu/infoeducatie-ui,infoeducatie/infoeducatie-ui,palcu/infoeducatie-ui,infoeducatie/infoeducatie-ui