Definitely, yes, and you do need to be careful about those outputs. Still, the sandboxing guarantee here is very useful! This isn't theoretical, Firefox does t

Definitely, yes, and you do need to be careful about those outputs. Still, the sandboxing guarantee here is very useful! This isn't theoretical, Firefox does this approach in production (using RLBox, which is mentioned in the post), https://hacks.mozilla.org/2020/02/securing-firefox-with-webassembly/ https://hacks.mozilla.org/2020/02/securing-firefox-with-weba...