It's only a matter of time before someone develops a wasm browser engine that renders to canvas and provides "trusted" delivery of ad assets over a websocket.
As long as the user still has control over their machine (i.e. the browser) this approach doesn't work very well. You can't really run trusted code on an untrusted machine.
No, it does work well. When they deliver the website as obfuscated binary code, it's much harder for user to change its behavior. Notice parent quoted the word "trusted" so you disagree with something other than they meant.
