I'm doing a simple iframe embed with YouTube videos on a website which is going to be viewed on mobile and desktop. The code I'm using to embed videos is this:
<iframe src="https://www.youtube.com/v/VIDEO_ID"></iframe>
I was under the impression that a HTML5 player would be served if Flash wasn't available, however when I debug this on a mobile the video is being served in Flash and not working.
Am I using the wrong URL or are there extra things which need to be done to embed the video properly? I've noticed that you can do an iframe embed using JavaScript too.