bug#12893: 24.2.50; url-retrieve fails for localhost

[Chong Yidong]

Dmitry Gutov <dgutov@yandex.ru> writes:

> I have an HTTP server running, started from an inferior process.
>
> If I evaluate (switch-to-buffer (url-retrieve-synchronously
> "http://localhost:24959/classes";)), it brings me to an empty buffer
> which has "failed" in the mode line.
>
> If I call the asynchronous version, it passes this into the callback:
>
> ((:error (error connection-failed failed with code 111
>  :host localhost :service 24959)))

I think this may be the same as Bug#12374, which was just fixed by
Takafumi Arakaki.  Could you try again with latest trunk and see if the
problem is still there?