[OpenID] Yahoo and localhost

Ian Fischer itfische at gmail.com
Wed Jan 30 12:35:55 PST 2008

While I can't speak for what Yahoo is doing, I can offer the following

The domain localhacks.com is setup so that all subdomains
(*.localhacks.com) point to  If your server is listening at
localhost, you should be able to just type in foo.localhacks.com for
testing after appropriate editing of your server config to map

I use this extensively to allow for easy development of multiple sites
on one computer, but it should be useful here as well.  Hopefully this
gives Yahoo what they're looking for.

-- Ian Fischer

On Jan 30, 2008 12:21 PM, Danny Burkes <dburkes at infoteria.com> wrote:
> Hi everyone-
> I'm in the process of developing a new product that will be an RP.  We
> have RP functionality already working using ruby-openid 2.03, and we
> can successfully authenticate against both OpenID 1.0 and 2.0 providers.
> Today Yahoo turned on their IdP functionality, so I thought I'd try
> it, and it wouldn't authenticate me when I run our app on my local
> development machine- I just get redirected to a page at Yahoo that
> says "Sorry! Something is not quite right with the request we received
> from the website you are trying to use".
> However, if I try to authenticate running our app on a publicly-
> available server (our staging server), it authenticates fine against
> the Yahoo IdP.
> The only difference I can see in the two authentication transactions
> is that, when running on my local development machine,
> openid.return_to is like "http://localhost:3000/...", whereas when
> running from the staging machine, it's like "http://
> our.staging.server/...".
> Does the Yahoo IdP refuse authentication requests that specify
> localhost in the return_to?  If so, it seems like a big flub, as it
> locks out developers.
> Thanks for any enlightenment you can provide.
> Best Regards,
> Danny Burkes
> http://www.lingr.com/help/about#danny
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