Twitter卡预览失败了twitter：image

Question

我尝试将Twitter Cards添加到我的网站，以便引用我的博文的推文可以展开并显示额外的信息。

当我添加twitter:image标签时，Twitter卡会失败，但是当我删除它时，它的工作正常。我做错了什么？

<meta property="twitter:url" content="http://liberalgeek.com/content/why-do-atheists-celebrate-christmas" />
<meta property="twitter:card" content="summary" />
<meta property="twitter:description" content="I can&#039;t speak for all atheists, I can only speak for myself, so please leave a comment below and explain why you celebrate Christmas! When I hear someone ask, &quot;Why do atheists celebrate Christmas?&quot; my first thought often is: Better Question: Why do Christians celebrate Christmas?" />
<meta property="twitter:creator" content="@kennywyland" />
<meta property="twitter:title" content="Why do Atheists celebrate Christmas?" />

<!-- the following line causes the problem -->
<meta property="twitter:image" content="http://liberalgeek.com/sites/default/files/styles/large/public/Christmas%20Tree.jpg" />

图像是公开可见的，它足够大而不会太大......出了什么问题？

Answer 1

试试这个

<meta name="twitter:image:src" content="http://liberalgeek.com/sites/default/files/styles/large/public/Christmas%20Tree.jpg" />

https://dev.twitter.com/docs/cards/validation/validator

Answer 2

更改robots.txt以允许漫游器访问您的网站。