Yahoo + Signpost = 401 Unauthorized

[Jason Bodnar]

I've had an application running for the last 9 months that uses
signpost to authorize with Yahoo and retrieve the users address book
contacts. It started failing within the last 7-10 days. When calling
provider.retrieveRequestToken() the response from Yahoo is 401
Unauthorized. This occurs only when I pass a callback URL. If I make
the call Out of Band everything works.

Is anybody else experiencing this? Anybody found a solution?

[Takahiro Horikawa]

Hi Jason,

My client using signpost works well with Yahoo.com.

So I guess your callback URL does not match app domain which 

was configured on Yahoo Developer site.

Could you check this setting?

If there is no problem, please let me know your callback URL.

Regards,

Takahiro Horikawa