title: Google+ Pages API - publishing a post with custom thumbnail of url attachment
body: <p>We are using the G+ Pages API to post into a G+ Page. When creating a post, we enable link attachment with customization of the link thumbnail image.</p>
  
  <p>Sometimes, the API ignores the image url with give it and selects another image (without returning any error message). I'm trying to understand why but I couldn't find any documentation that can provide an explanation. </p>
  
  <p>Here is an example:
  This is the url we are attaching to the post: <a href="https://business.yell.com/knowledge/attract-right-social-media-audience-increase-followers/" rel="nofollow">https://business.yell.com/knowledge/attract-right-social-media-audience-increase-followers/</a></p>
  
  <p>This is the body of the request:</p>
  
  <pre><code>{  
     "access":{  
        "items":[  
           {  
              "type":"public"
           }
        ]
     },
     "object":{  
        "attachments":[  
           {  
              "image":{  
                 "url":"https:\/\/business.yell.com\/knowledge\/wp-content\/uploads\/2015\/01\/how-to-attract-the-right-social-media-audience-and-increase-followers.png"
              },
              "objectType":"article",
              "url":"https:\/\/business.yell.com\/knowledge\/attract-right-social-media-audience-increase-followers\/"
           }
        ],
        "originalContent":"content text"
     }
  }
  </code></pre>
  
  <p>The image url is from a meta tag (og:image) in the article source, but the API ignores the url and uses a different image from the page.</p>
  
  <p>Any idea what am I doing wrong?</p>
  
  <p>Thanks!</p>