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Editorial Team
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Asked: 2026-05-19T00:35:10+00:00

I’ve set up a test app using the C# Facebook SDK from codeplex. On

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I’ve set up a test app using the C# Facebook SDK from codeplex. On the initial connect with the app the user is prompted for the appropriate permissions. If they authorize the permissions they end up at a page that gives a 500 error. A breakpoint on FacebookAppRedirectHttpHandler.ProcessRequest never triggers so I’m at a loss as to how to debug this.

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1 Answer

  1. Editorial Team

    You are probably missing the http handlers section from your web.config file. See here.

    Here are the config sections you are missing:

     <system.web>
      <httpHandlers>
        <add verb="*" path="facebookredirect.axd" 
                      type="Facebook.Web.FacebookAppRedirectHttpHandler, Facebook.Web" />
      </httpHandlers>
   </system.web>
   <system.webServer>
        <handlers>
             <add name="facebookredirect.axd" verb="*" path="facebookredirect.axd" 
                  type="Facebook.Web.FacebookAppRedirectHttpHandler, Facebook.Web" />
        </handlers>
   </system.webServer>
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