purgecss on GAE/SE
make deploy-purgecss PROJECT_NAME=YOUR_GCP_PROJECT_ID
node app.js
curl -sS http://localhost:8080 -X POST -F "html=@index.html" -F "css=@main.css"
go run main.go https://office-aska.com https://office-aska.com/static/website/css/style.css http://localhost:8080
go run main.go https://office-aska.com https://office-aska.com/static/website/css/style.css https://***.an.r.appspot.com