Question: It seems that when creating a Send button, Facebook will not let me send a link to the current iFrame tab / app. The link always gets reduced to just the Facebook page.

For example, I want to create a Send button using the following href:
<http://www.facebook.com/pages/MyPage/pageid/?sk=app_my_app_id&app_data=My_app_data>

But in the send button, the link gets reduced to:
<http://www.facebook.com/pages/MyPage/pageid>

Any ideas on how to get straight to the correct tab and include the app\_data?

Answer: 
Take a look here: <https://www.facebook.com/note.php?note_id=10150231557835844> CTRL+F Some Limitations of the Send Button
Facebook Like, Recommend, and Send buttons will not allow you to link to a tab on a page. I ran into this problem myself, and found a workaround solution.

I used Facebook's share feature to create a share button or share link. When users click the link, they are taken to a page that links directly to the tab. They can select whether to share it on their own Facebook wall or in a private message.

Here's how:

```
<a href="http://www.facebook.com/share.php?u=URL_TO_FACEBOOK_PAGE_TAB" title="Share this with your friends!">Click here to share this with your friends!</a>

```

You can replace "Click here to share this with your friends" with an image if you would like. If you would like the link to open the share feature in a new window or tab, add target="\_blank" to the parameters.

There's always a chance that Facebook might not support this style of share link forever...but this works for the time being.