I own a jQuery mobile website. There i using facebook share option with custom parameters to add title, description, image with link
Like below, https://www.facebook.com
sharer.php has now been deprecated. https://developers.facebook.com/bugs/252983554810810/
The new method is to use the share dialog: https://developers.facebook.com/docs/sharing/reference/share-dialog
e.g.
https://www.facebook.com/dialog/share?
app_id=145634995501895
&display=popup
&href=https%3A%2F%2Fdevelopers.facebook.com%2Fdocs%2F
&redirect_uri=https://developers.facebook.com/tools/explorer