I have a problem with making apprequests for my website application. I can send invite with FB.ui "apprequests" method but this request is not shown on Facebook. It looks like it is blocked because it fires notification icon but in a second notification disappears.
I've found a workaround. I set application also as a canvas and make redirection from canvas to the website page. But I don't know if it will not be blocked or something in the future.
What is the recommended method to send an application requests from a website application?
From my experience and from reading the Facebook Developer Guide, it seems like it's mandatory for you to have a Canvas defined for your Facebook app so the requests render as Notifications.
I am trying to solve a problem where these notifications show fine in the Facebook website but not on the Facebook Android client's notification popup.