Hey guys!
I wanted to raise a small but impactful issue: when a post contains a large image (e.g. a photo uploaded directly from a camera or a high-resolution file), WhatsApp drops the link preview image entirely. This happens because WhatsApp has a strict ~300KB file size limit for og:image if the image exceeds that, no preview is shown at all.
Currently, the extension passes the original image URL directly to the og:image tag, which works perfectly for most platforms (Facebook, Telegram, etc.) but fails silently on WhatsApp when the source image is large.
A possible improvement would be to allow admins to configure a maximum file size or resolution for the og:image, or to support pointing to a resized/compressed version of the image (for example, via a CDN endpoint or a server-side thumbnail) instead of the full original.
I understand this may not be trivial to implement, but even a note in the documentation about this limitation and a recommendation to set a lightweight default forum image would help a lot of communities that rely on WhatsApp sharing.
Thanks for considering it!
