Allow app/twiddle to access localStorage

I was trying to make a repro repo for the ember-localstorage-adapter using ember-twiddle, but it seems that the app is "sandboxed" or otherwise disallowed from accessing `localStorage`. I assume this is related to some kind of security concern. Is there a way to work around it? (e.g. set a flag in the config or something?)

https://ember-twiddle.com/d526982f42a741ee1379bbb76c2548c1?openFiles=routes.application.js%2C