Yup. That's part of the "experimental" experience. :) (Although that wasm file should be gzipped, will double check what's up with that). More info on the size of Go's wasm binaries here: https://github.com/golang/go/wiki/WebAssembly#reducing-the-s...

The doc site is a prototype and proof-of-concept using Vugu. First attempt, just wrote it last week. Lots of optimizations still needed for sure.