Unable to play video

<iframe src="https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2FTheTrail1033%2Fvideos%2F371885060121548%2F&show_text=0&width=267" width="267" height="476" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allowFullScreen="true"></iframe>