There is a possibility that this is related to the execjs version.
https://github.com/ai/autoprefixer-rails/issues/203#issuecomment-838512342On the other hand, the autoprefixer.js from the gem (about 1 MB) and the autoprefixer.js that's generated through build from the upstream repo (about 8 MB) seems to be different. This is unexplained by the dev.
