What is the purpose of using feature parameter in YouYube embed link?The video is working fine if I use below embed tag,<iframe width=560 height=315 src=http://www.youtube.com/watch?v=cRFnsOUoHmM frameborder=0 allowfullscreen></iframe>But when I changed the src value to http://www.youtube.com/watch?v=cRFnsOUoHmM&feature=g-upl, the video wont play. I have added the parameter feature=g-upl in this link.I cant understand the purpose of this parameter. And why it is not working?
Feature parameter in YouTube embed link
youtube;embed