问题
Ok I am trying to publish an action on facebook from my mobile game.
I have set up an object (say "picture") and an action (say "draw") I have set up an external web page whose meta data describes the object "picture"
Now I send a post request from my game with parameters
- access_token = token
- picture = the external link of the object
The action is published. But not with the values I give in my external page's meta data. The action published has the values which i gave to the PREVIEW OBJECT of the object "picture"
In short, the action published takes its values (like og:title, og:image, etc) from the PREVIEW OBJECT of "picture" and not from the external link's meta data.
Hope that makes sense.
I'm pretty sure the solution would be something really simple, but I can't figure out what the problem is. Please help.
来源：https://stackoverflow.com/questions/10643748/facebook-publish-actions-values-from-preview-object-are-taken-when-publishing