Patch Details:
- Update the head tag section with facebook share tag, including:
1. Page Link
2. Page Cover on Facebook
3. Page Title
4. Page Description
- Share the link in OpenCart Store will display the category image, product image (not the additional image), other pages will be displayed the store image.
- Meta Description must be filled for the share description, otherwise share description will be empty

OpenCart 2.x :
1. Unzip the file and upload the XML into Extension Installer
2. Press Refresh button into Extension Modification

OpenCart 3.0:
1. Upload the hold zip file into Extension Installer
2. Press Refresh button into Extension Modification

P.S. This patch is working for OpenCart which is released on or before July 27, 2017

If the share URL was cached, please go to facebook debug tool to clear the cache:
https://developers.facebook.com/tools/debug/sharing/