Uncaught Error: FFI dependency not provided: url about trypurescript HOT 3 CLOSED

We don't provide FFI shims for all libraries in the PureScript package sets; you can't execute Node libraries on Try PureScript, but the compiler will still happily typecheck it for you.

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It's possible to catch this error and bubble it up to the Halogen application, displaying a message to the user directly. However, since the core team is currently working on a new compiler release and the new registry I think it's unlikely anyone gets to it in the near term. That said, I'd certainly accept pull requests that help surface this error or a warning to the user!

from trypurescript.

Thanks for the quick reply.

Maybe it'd be helpful to add it to the doc? Or try to provide a meaningful error message to users when that happens?

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