webr.sh doesn't allow for a version to be set in url vs. webr.r-wasm.org/<version>

[coatless]

Take for example:

https://webr.r-wasm.org/latest/

This uses the latest development build. However, if we switch it to say, v0.6.0, then we get a version of the REPL tied to v0.6.0, e.g.

https://webr.r-wasm.org/v0.6.0/

However, if we try something similar with webr.sh, https://webr.sh/latest/ or https://webr.sh/v0.6.0/, then we're left with:

XML response with access denied

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<Error>
<Code>AccessDenied</Code>
<Message>Access Denied</Message>
</Error>