具有大图像的Twitter摘要卡不工作

我已经使用了上述所有元标记，但图像仍然仅显示为摘要卡，而不是显示带有大图像的摘要卡。

有时这只是一个问题，请尝试清除网站上的错误

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@nytimes">
<meta name="twitter:creator" content="@SarahMaslinNir">
<meta name="twitter:title" content="Parade of Fans for Houston’s Funeral">
<meta name="twitter:description" content="NEWARK - Thenter code heree guest list and parade of limousines with celebrities emerging from them seemed more suited ">
<meta name="twitter:image" content="http://graphics8.nytimes.com/images/2012/02/19/us/19whitney-span/19whitney-span-articleLarge.jpg">