Facebook meta标签og：图片裁剪

Question

我试图弄清楚如何让Facebook在共享对话框中显示YouTube缩略图而不裁剪它们。

实际上，问题仅在于群组页面，通过我的个人页面共享它或在Open Graph Object Debugger上查找它时，它会显示完整尺寸的图像。

<meta http-equiv="refresh" content="0; URL='_YT-VIDEO-URL_'" />
<meta property="og:url" content="_MY-URL_" />
<meta property="og:title" content="_MY-TITLE_" />
<meta property="og:image:type" content="image/jpeg" />
<meta property="og:image:width" content="1280" />
<meta property="og:image:height" content="720" />
<meta property="og:image" content="http://i1.ytimg.com/vi/_VIDEO-ID_/maxresdefault.jpg" />

Basically, I need to make full-size thumbnail instead of small square preview