package main import ( "image" "image/color" "io" ) func init() { // Register fake svg decoder. Since we need this only for type detecting, we can // return fake image sizes decode := func(io.Reader) (image.Image, error) { return image.NewRGBA(image.Rect(0, 0, 1, 1)), nil } decodeConfig := func(io.Reader) (image.Config, error) { return image.Config{ColorModel: color.RGBAModel, Width: 1, Height: 1}, nil } image.RegisterFormat("svg", "