http vs https?

Hi, I'm getting the following error whenever I use `playbackState='playing'`, though the video is playing:
`Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://www.youtube.com') does not match the recipient window's origin`

This [post](http://stackoverflow.com/questions/27573017/failed-to-execute-postmessage-on-domwindow-https-www-youtube-com-http) on SO suggests it's an issue of http vs https in the api call. How can I configure the call to make sure it is using the correct url?

Start by tracing how the React component invokes the YouTube IFrame Player API when playbackState is set to 'playing'. Reproduce the postMessage origin error over HTTP and HTTPS, then verify that the API call uses a matching target origin and that the error no longer occurs.

Written by the indexing model from the issue text.