I’m having trouble validating product cards with certain image URLs. Our cdn serves product images in a variety of sizes. The URLs are in the form http://img.ebyrcdn.net/444011-409379-290.jpg where 444011 is the image ID, 409379 is the product ID and 290 is the size (maximum of height and width is 290px).
For some reason, the validator is fine with these 290px or our 800px images, but when I try any of our other sizes (80, 150, or 200) all of which are publicly accessible, it says “Invalid image. This image cannot be fetched”. Unfortunately the images that do work are too large and end up being cropped on the card.
We have checked our server logs and seen requests for the smaller images coming from Twitter, all of which have been returned successfully.
Any idea why the validator doesn’t like certain images?
Thanks