Thanks for sharing the link. That was an amazing read. I originally tried the proxy method (I didn't know about Realms though, they seem cool), and I think I go

Thanks for sharing the link. That was an amazing read. I originally tried the proxy method (I didn't know about Realms though, they seem cool), and I think I got pretty far. At least, I couldn't find a way to get to the constructor, and access the main scope. But I'm just not confident you can really isolate code on the same domain that your main code run's in. That's why I ended up moving to a web worker on a different origin. It also comes with the plus that you can kill a hanging web work, as it's run in a different process. Going to be keeping a close eye on Realm though!