Like plugin for fb application url

I have a iframe application, in that app i put a fb like plugin.

the plugin has field of 'which url to like', i filled with my app url (i.e. "http://apps.facebook.com/demoapp")

When any one click like, it posting on their wall like below image,

it not showing proper image as well as decription.

Is this correct way we giving apps.facebook.com/demoapp url for like plugin,

if its correct means how display valid description..

Solution

You should put right "og" meta tags