Redirect loops and mazes

[plugd]

Sean Conner writes:
>   Point the client to any of the following:
>
> 	gemini://gemini.conman.org/test/redirhell/
> 	gemini://gemini.conman.org/test/redirhell2/
> 	gemini://gemini.conman.org/test/redirhell3/
> 	gemini://gemini.conman.org/test/redirhell4
> 	gemini://gemini.conman.org/test/redirhell5
>
>   (NOTE:  the links will continuously redirect)

Thanks Sean, this is great.

>   I suspect that most would expect the client to stop making requests after
> N redirects.  What's N?  That hasn't been decided yet.

In addition to a redirect threshold, it's of course also easy for
clients to keep track of the addresses seen during a redirect sequence,
in which case they can just abort on a redirect to a seen address.

plugd