- Your visitor uses a browsers that supports the h264 (Safari, Chrome, IE9) or WebM (currently development versions of Chrome, Opera and Firefox) video codecs
- Your visitor is enrolled in the YouTube html5 beta
- It might break if YouTube implements x-frame-options for their video-pages
- Positioning of the player might be a few pixels off in some browsers
- Some buttons in the embedded player (e.g. view full screen) won’t function properly
- This might (not) work on iPhone/ iPod/ iPad’s (there are known issues with iframes & overflow in mobile Safari that might affect html5 embedding, feedback is welcome)
They Might be Giants-Birdhouse In Your Soul
Watch this video on YouTube.