Facebook only. Present on graphic-only comments (sticker, GIF, photo) that carry no text. URLs are ephemeral and may expire for Meta platforms (oe= expiry), so fetch promptly. Instagram comments do not support attachments.
| Name | Type | Description | Notes |
|---|---|---|---|
| type | String | Attachment type: sticker, animated_image_share, or photo. | |
| imageUrl | String | Rendered image/preview URL (from attachment.media.image.src). | [optional] |
| url | String | Source URL (from attachment.url). For GIFs this is an l.facebook.com redirect. | [optional] |