The book covers default back to blank pixel on my blog. Looks good in the micro.blog admin, so covers are fetched, but not shown on the blog.
I search books via goodreads ID, the book covers then have a URL like “https://cdn.micro.blog/photos/100px/https%3A%2F%2Fimages-na.ssl-images-amazon.com%2Fimages%2FS%2Fcompressed.photo.goodreads.com%2Fbooks%2F1624879727i%2F54737796.jpg”
If you open the jpg URL, it gives back “invalid size”.
My microblog: Martins Zibaldone - Bibliothek