If you have previously shared a Folio to Facebook, with a different image. Facebook may not update right away and show changes you have made to th Social Sharing Image.
To see the updated image you will want to clear Facebook's memory, or cache. After clearing Facebook's cache related to this post, your Header Image will appear when the Booking Page link is shared.
Please follow these steps to clear Facebook's cache:
1. Delete the StickyFolios link posted on Facebook.
2. Go to the Facebook Developers Debug Tool: http://developers.facebook.com/tools/debug.
3. Paste the StickyFolios link you intend to update into the box and click Debug.
4. If you don't see the image/changes you made, click the Scrape Again button. You may need to click the Scrape Again button a few times before you see the updated Social Sharing Image, Message, or URL changes you have made.
5. Paste your StickyFolios link back onto Facebook.