I don’t think there is a single web site with human readable javascript on the web anymore.

With all the bundlers and minifiers manglers etc, delivered js is already as closed as a wasm binary would be.

> An option to keep the source of the web app closed will fragment the web dev community yet again.

But this changes nothing. It was always possible to obfuscate JavaScript, just like every other programming language.

That option is about the same as it is today: you can access it, but it will be hard to follow. Just like minified Javascript.