This sounds like an interesting and useful plugin! I regularly embed FB posts into my blog, which often cause a headache (at different screen sizes).
<iframe src="https://www.facebook.com/plugins/post.php?href=https%3A%2F%2Fwww.facebook.com%2...&height=557" width="552" height="557" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allow="encrypted-media"></iframe>
Will your plugin make FB embeds work better?
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