strange error with Facebook Feed dialog

We followed the Facebook example code, shown here -- this works in our app -- if you click the anchor 'a' link, its onclick handler opens a new window and the facebook feed dialog appears: ``` <a class="fbShareToWall" onClick='window.open("https://www.facebook.com/dialog/feed?app_id=123050457758177 &link=https://developers.facebook.com/docs/reference/dialogs/ &picture=http://fbrell.com/f8.jpg &name=Facebook%20Dialogs&caption=Reference%20Documentation &description=Using%20Dialogs%20to%20interact%20with%20users. &redirect_uri=http://www.example.com/response");'>Share on Facebook</a> ``` The above code works fine and displays the Facebook sample of the Feed dialog. Here is our code - we get the error message: "An error occurred with oursite.com. Please try again later. API Error Code: 191 API Error Description: The specified URL is not owned by the application Error Message: redirect_uri is not owned by the application. NOTE: this is a beta site and we're running it on a staging server whose domain name is NOT the same as the domain name that "OUR_APP_ID" below is associated with: ``` <a class="fbShareToWall" onClick='window.open("https://www.facebook.com/dialog/feed?app_id="OUR_APP_ID" &link=https://www.oursite.com&name=Please%20work &caption=Just%20work &description=Comeon%20work &redirect_uri=http://www.oursite.com");'>Share on Facebook</a> ``` (note: our code has the numerical FB app_id, not "OUR_APP_ID") "OUR_APP_ID" is 'connected' to our production server's domain name and we're kinda wondering if that's the problem. EDIT: "we're kinda wondering if that's the problem" because the code above is on our staging website www.foo.com -- and our code above uses an app_Id that we connected to our production domain name 'www.oursite.com'. We wonder if Facebook -- upon receiving the above request to display the Feed dialog -- is saying to itself "okay this website www.foo.com is trying to display a Feed dialog -- but the app_id is for www.oursite.com -- so we're going to pop up a 191 error" We tested that theory. We altered the sample FB feed dialog code at the top -- we changed some numbers in the sample code's app id. And we get an error message now with the formerly working sample Feed dialog code but it is a completely different error message. Any advice on this '191' redirect_uri error message?