Facebook OpenGraph and Asp.Net application

Question

We want to add open graph functionality to our facebook app. I've following the tutorial on facebook.com with simple cook recipe application. It is work ok when i use just simple .html page for open graph object, and put this page on public hosting. Then i try to implement it in our asp.net application (it serves like a wrapper for flash game for facebook). I've add opengraphtest.aspx webform, added all neccesary metatags and scripts from tutorial. And now when i use debug tool, i have warnings:

I've correct image dimensions, correct title and type tags:

  <meta property="fb:app_id" content="557295941002570" /> 
  <meta property="og:type"   content="myappnamespace:recipe" /> 
  <meta property="og:url"    content="http://apps.facebook.com/myappnamespace/opengraphtest.aspx" /> 
  <meta property="og:title"  content="Sample Recipe Test" /> 
  <meta property="og:image"  content="http://mywebsite.com/og/cook.png" /> 

As a result of this warnings i can't test this integration, every time i post action response is returned with error:

"(#3502) Object at URL http://apps.facebook.com/myappnamespace/opengraphtest.aspx has og:type of 'website'. The property 'recipe' requires an object of og:type 'myappnamespace:recipe'. "

Answer 1

You need to add a valid meta og:type to your app, like website. You could see the valid object types here: https://developers.facebook.com/docs/technical-guides/opengraph/built-in-objects/