Problem using Facebook FeedShare only on iOS

I am using the latest Facebook Unity SDK, and using the FeedShare method to post to the user's feed using a Facebook popup.

Code (CSharp):

1. FB.FeedShare (link: new Uri (ogURL),callback:(IShareResult result)=>
2.                 {
3.                     if(ShareCompleted!=null)
4.                     {
5.                         if (!string.IsNullOrEmpty(result.Error))
6.                             ShareCompleted(true);
7.                         else
8.                             ShareCompleted(false);
9.                     }
10.                 });

ogURL points to a open graph page, with OG meta data for the content to share.

Everything works fine on Android and WebGL, but on iOS I am getting the following error from FB:
The parameter 'href' or 'media' is required

All other facebook related actions (login, apprequests, friends list) work great, so it's probably not related to SDK initialization.

Any ideas what might be wrong here?

 

I've never used that method. But, if it looks like a bug try reporting it here.