facebook dialog to add facebook tab app - returns - tabs_added[pageId]=1

Question

It seems the new dialog to tab app to a page -> https://developers.facebook.com/docs/reference/dialogs/add_to_page/ - calls the app url with a GET (redirect_uri?tabs_added[nnnnn]=1) (where nnnn - pageId of page the app is being added to)

I can't find the documentation around whether when the app is removed from the page, the same url will be called with a GET (redirect_uri?tabs_added[nnnnn]=0) ?

I am keen to process the uninstall of the app from the page, if possible. (I have tried to test this, but don't get a trigger to my redirect_uri upon an installed, unlike the one that is called upon an install..)

My question is - whether there is a way to get a delete page callback into the app (when a page uninstalls/deletes the app from the page) ? From the syntax on install GET call (?tabs_added[nnn]=1, it seems that this might have been designed with an intention to call a GET with ?tabs_removed[nnnn]=1 or tabs_added[nnnn]=0 when the app is deleted from the page ?

Answer 1

Empirically, the answer to your question is No. Nothing on my server gets called by Facebook when the Page Tab is removed.