Facebook app – for Let’s Mix
For Let’s Mix and a leading spirits brand I’ve developed a Facebook app to be displayed in a Facebook fan page tab.
A fun assignment, that turned out to be somewhat frustrating when I started to realize the limits of the Facebook API.
A Facebook app using FBML can include IFrames, and the app can also display the whole content in an IFrame if desired. The IFrame versions of the new and fancy social functionality can therefore easily be included, but put that same app in a tab on a fan page and this is no longer an option. All of a sudden the IFrames are gone.
Turns out that apps displayed in tabs can only use old style FBML. This is only the case for the specific combination of apps in tabs, but is still very frustrating when that’s exactly what you need to build. There are workarounds, through for example JavaScript, but to execute anything in JavaScript in this environment the user has to actively click something. No actions on load allowed. I hope that this is fixed by Facebook soon!
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