When using Safari on Iphone 4 iOS 7.1.2, I cannot share product detail on Facebook.
app/design/frontend/rwd/default/template/catalog/product/view/sharing.phtml
<?php $_u = 'p[url]=' . $_productUrl . '&p[images][0]=' . $_productImageUrl
<?php $_u = 'u=' . $_productUrl . '&p[images][0]=' . $_productImageUrl
After changing $_u = 'p[url]' => $_u = 'u=', I can share product on Facebook with Safari. Any idea about this issue.