Display remote oEmbed content with collective.oembed?

Anyone using collective.oembed for displaying, say, YouTube videos using the provided custom view for Link content?

I've followed (on Plone 4.3.11) the instructions provided by collective.oembed to the best of my ability but embarrassingly have not managed to make it work; not sure if the steps I've taken are correct.

The view loads, associated javascripts load (no errors), but the view Python code is not called and there is no video. I am thus wondering if there's something in the configuration I am missing or doing wrong.