iPlayer embed returns JS error: ao is undefined

Firefox is reporting this when I embed a BBC iPlayer iframe.

ao is undefined Source File: http://node1.bbcimg.co.uk/glow/glow/1.7.3/core/core.js Line: 19

Any ideas anyone?

This is my embed source:

<iframe frameBorder="0" id="iplayer" src="http://www.bbc.co.uk/iplayer/console/tv/b00v77xb"></iframe>