Facebook does not show preview images.
Steps to reproduce:
- Navigate to Facebook's Sharing Debugger.
- Enter a URL from the blog (such as
http://stiemannkj1.gitlab.io/technical-writing/
) into the text box. - Click Debug
If the bug still exists multiple warnings will appear stating that the preview image is not 200px by 200px (minimum) and that required properties are missing.
If the bug is fixed, no warnings will appear and the preview image will appear when sharing the blog.