I have an image that is served up in the og:image metatag so that it can be the image in a Facebook share post. However, when I use the debugger it gives me:
Error while downloading http://www.example.com/images/image.png with HTTP response code: 502
I can go to the URL and receive the image fine with a status code of 200. Does anybody have any idea what could be the issue? I was sure it used to work fine on Facebook but maybe didn't try with this exact image. Facebook is also okay with other images in the same folder.