Imports github.com/tdewolff/minify github.com/tdewolff/minify/css github.com/tdewolff/minify/html github.com/tdewolff/minify/js github.com/tdewolff/minify/json github.com/tdewolff/minify/svg github.com/tdewolff/minify/xml Standard library imports bytes image/png io io/ioutil regexp