Javascript – How to embed an autoplaying YouTube video in an iframe

htmliframejavascriptyoutubeyoutube-api

I am trying to embed the new iframe version of a YouTube video and get it to auto play.

As far as I can tell, there is no way of doing this by amending flags to the URL. Is there a way to do it by using JavaScript & the API?

Best Solution

This works in Chrome but not Firefox 3.6 (warning: RickRoll video):

<iframe width="420" height="345" src="http://www.youtube.com/embed/oHg5SJYRHA0?autoplay=1" frameborder="0" allowfullscreen></iframe>

The JavaScript API for iframe embeds exists, but is still posted as an experimental feature.

UPDATE: The iframe API is now fully supported and "Creating YT.Player objects - Example 2" shows how to set "autoplay" in JavaScript.