当我使用以下元数据将视频嵌入到 facebook 时，我能够成功嵌入视频，但我不希望 facebook 在嵌入后将文本添加到图像顶部。我该怎么做？
<meta property="og:type" content="movie"/>
<meta property="og:video:type" content="application/x-shockwave-flash" />
<meta property="og:video" content="http://player.theplatform.com/p/yHjoOC/onsite_dev/swf/select/nEdMK4_islkz&autoPlay=true" />
<meta property="og:video:height" content="265" />
<meta property="og:video:width" content="470" />
<meta property="og:video:secure_url" content="https://player.theplatform.com/p/yHjoOC/onsite_dev/swf/select/nEdMK4_islkz&autoPlay=true" />
<meta property="og:title" content="Christina Aguilera On The Voice"/>
<meta property="og:description" content="Christina Aguilera gives insight on her team and competition." />
<meta property="og:image" content="https://mpxstatic-nbcmpx.nbcuni.com/NBCdotCOM/mezzthumb/9d883881039c20870dfeaf068a5be0e7_1c966ee53db728d715881e1cf193ebc2.jpg"/>
请帮助我如何实现这一目标。