将自定义图像添加到Facebook功能

Question

This may seem like a duplicate question or it is easily answered here yet I remain utterly befuddled by how easy of a feature this is to implement and how much trouble I am having adding my image and finding a solution that works. I have been scouring to no avail. The two links provided above show the only two options I have found which are:

<meta property="og:image" content="http://www.example.com/styles/images/fb_cl_logo.png"/>

and

<link rel="canonical" href="http://www.example.com/Blogs_fb_build.php?id=<?php echo $blog; ?>"/>

Needless to say this is not working whatsoever!

Thanks in advance.

Answer 1

Here are two probable reasons:

1. The url to the image is invalid or the URL is inaccessible by Facebooks crawler.
2. Facebook have cached the thumbnail for your page.

If Facebook have cached the results your page, use the Facebook Debugger and enter the URL to your page, it will usually break the cache (can be good to add cache break querystring if it misbehaves).

If it isnt a cache problem you will see what information the crawler sees about your page which probably is going to solve your problem.

Another things worth mentioning is that breaking the cache in the debugger doesnt always reflect to the "normal Facebook posting" instantly.