how to autoplay the video in an ember app

I have added video to my ember app using videojs plugin .. i have done bower install videojs-youtube and npm install videojs-youtube in my app. I am showing the video as a pop up but video is not autoplayed . how to auto play the video using an ember app..

code---->

                              id="vid1"

                              class="video-js vjs-default-skin"

                              controls

                              width="640" height="264"

                              data-setup='{"techOrder": ["youtube"], "sources": [{ "type": "video/youtube", "src": "https://www.youtube.com/watch?v=xjS6SftYQaQ"}], "youtube": { "iv_load_policy": 1 } }'>

javascript>>>

play(){

$('#video').modal('show');

 $("#vid1")[0].src += "&autoplay=1";

},