I think WebAssembly requires explicitly linking which functions you will use, and does not have as complicated objects as JavaScript, so handling sandboxing wil

I think WebAssembly requires explicitly linking which functions you will use, and does not have as complicated objects as JavaScript, so handling sandboxing will be simpler. It also is presumably might be able run more efficiently than a JavaScript code. (I think WebAssembly has some problems too, but there are some advantages.)