Totally agreed -- and I don't think WASM will change any of that. The good parts of the web in terms of debugging is the separation of concerns -- having separ

Totally agreed -- and I don't think WASM will change any of that. The good parts of the web in terms of debugging is the separation of concerns -- having separate interfaces for CSS, HTML, network requests, and the DOM, and having each of those interfaces be relatively inspectable. I am a little worried about frameworks that target WASM spitting everything onto a Canvas, bypassing HTML and CSS (coughQt*cought). That would be a substantial loss for the Open web. But I don't lose any sleep over the idea of replacing Javascript.