facebook login using oauth fails on live server

Question

I'm using OAuthWebSecurity to login with facebook and it is working on localhost. However then deployed to the live server I get the following error message:

The remote server returned an error: (400) Bad Request.

• I have checked domain details are correct on facebook.
• The sandbox mode is disabled.
• I have disabled windows firewall - still get same error.
• Responses from facebook have the identical format whether in live or localhost environments.
• The date and time of live server is correct.

I've test locally also changing the host file to the live domain - still works locally.

Here's the stack trace:

[WebException: The remote server returned an error: (400) Bad Request.]
System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) +3291120
System.Net.WebClient.DownloadString(Uri address) +207
DotNetOpenAuth.AspNet.Clients.FacebookClient.QueryAccessToken(Uri returnUrl, String authorizationCode) +293
DotNetOpenAuth.AspNet.Clients.OAuth2Client.VerifyAuthentication(HttpContextBase context, Uri returnPageUrl) +167
DotNetOpenAuth.AspNet.OpenAuthSecurityManager.VerifyAuthentication(String returnUrl) +502
Microsoft.Web.WebPages.OAuth.OAuthWebSecurity.VerifyAuthenticationCore(HttpContextBase context, String returnUrl) +231

Any suggestions?

Answer 1

There was a defect open related to this: https://github.com/DotNetOpenAuth/DotNetOpenAuth/issues/203

but that library is apparently no longer being maintained: https://github.com/DotNetOpenAuth/DotNetOpenAuth/issues/317#issuecomment-29580565

... although it is still referenced in many Microsoft documents. Investigating that related to another defect.

See also: The remote server returned an error: (400) Bad Request Microsoft.AspNet.Membership.OpenAuth