> dev/preview

Ah sorry, I was confusing stuffs. It wasn't even wrangler preview, it was the web editor on the worker website.

> cloudflared

Yep, I noticed that update. I couldn't have updated wrangler faster.

> Promise.then

I'm sorry again. False alarm. It's me not understanding when things get executed.

> URL.createObjectURL

I don't really have a use case for it. It was mostly me seeing the example code being reasonable, copied it and was surprised it didn't work.