Imports github.com/BenLubar/nodejs-roundtripper github.com/gopherjs/gopherjs/js github.com/karlseguin/ccache github.com/mat/besticon/ico golang.org/x/image/bmp golang.org/x/image/webp golang.org/x/net/html golang.org/x/net/html/atom Standard library imports bytes context fmt image image/gif image/jpeg image/png net/http net/url os path path/filepath strconv strings sync time