Is it possible to publish a facebook comment stream in a canvas page?

I created a Facebook App which publishes facebook user photos in canvas pages. It replicates almost exactly the normal behavior of facebook, displaying albums, photos in the album and then the photo.
I would like to add below the photo the comments social plugin WITH the orginal comments already posted on facebook.
I tried something like

<fb:comments href="http://www.facebook.com/photo.php?fbid=10150300101669188"></fb:comments>;

or

<fb:comments href="http://www.facebook.com/photo.php?pid=9354712&id=743439187"></fb:comments>

without success.

I tried to find an answer on this but wasn't able to find one. Maybe is because the social plugin works only on same domain and not cross domain...

A graph API call to the photo object returns all comments associated to it, so one way is to display those comments and then add a box to post a new one (which, again, through a call to the graph API can be added to the original comments stream).

But this seems to me to reinvent the wheel: is there any way to not do it? Am I missing something in the parameters of the comments social plugin?

Any help is appreciated

Others have reported problems

Others have reported problems with <fb:comments> in the past. There may have been a bug, but it works for me. Here's the page I use to test it: http://apps.facebook.com/drupalforfacebook/node/2371 (hosted on this site).

This works for me as

This works for me as well.
What is not working is where href is not linked to a page of your application but to facebook itself:
"http://www.facebook.com/photo.php?fbid=10150300101669188"

I want to display in my app a picture taken from facebook and the comments already associated to it usign the social plugin, if possible