Does anyone know how to embed a video from FB on your own site now?

My page is public, so that's not the issue. I tried the Code Configurator here:

[developers.facebook.com...]

I also tried the old format of embedding the video link in an iFrame:

<iframe src="https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2FExample%2Fvideos%2F123456789%2F%3Ftype%3D3&width=500&show_text=false&height=280&appId" width="500" height="280" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true"></iframe>

And the other format of using their SDK:

<div id="fb-root"></div>
<script>
(function(d, s, id) {
 var js, fjs = d.getElementsByTagName(s)[0];
 if (d.getElementById(id)) return;
 js = d.createElement(s);
 js.id = id;
 js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3";
 fjs.parentNode.insertBefore(js, fjs);
}
(document, 'script', 'facebook-jssdk')
);
</script>
<div class="fb-video" data-allowfullscreen="1" data-href="/Example/videos/123456789/"></div>

All three just give me an image that says:

Unavailable
This video can't be embedded.

Is there a newer way that I'm supposed to do this?