I assume the main argument against this idea is the burden it places on the Javascript engine. Its the same reason people use gzip and not packer (well, assumin

I assume the main argument against this idea is the burden it places on the Javascript engine. Its the same reason people use gzip and not packer (well, assuming packer produces a smaller file, which happens sometimes). Engines are getting faster, but they still really can't compete with native browser facilities.