The ability for the AS to provide an endpoint to exchange a request object for a request uri is not clear from section 5

[Dave Tonge]

I will propose some extra wording with an example via pull request

[Dave Tonge]

The latest draft has this statement in section 5:

For example, the authorization server may 
        provide a URL to which the client POSTs the request object and 
        obtains the Request URI. 

This wasn't in the draft I read, and helps explain this scenario.

I will still add an example via pull request though

[Nat Sakimura]

I do not see the pull request. I guess we can leave the example to FAPI.