--- phocaopengraph.php.orig	2017-10-07 10:11:10.112000000 +0200
+++ phocaopengraph.php	2017-10-09 12:50:57.440000000 +0200
@@ -217,9 +217,15 @@
 				
 				if ($absU == 1) {
 					$linkImg = $src[1];
 				} else {
-					$linkImg = JURI::base(false).$src[1];
+					if ($src[1][0] == '/') {
+						$myURI = new JURI(JURI::base(false));
+						$myURI->setPath($src[1]);
+						$linkImg = $myURI->toString();
+					} else {
+						$linkImg = JURI::base(false).$src[1];
+					}
 				}
 				
 				plgContentPhocaOpenGraphHelper::renderTag('og:image', $linkImg, $type);
 				//plgContentPhocaOpenGraphHelper::renderTag('og:image', JURI::base(false).$src[1], $type);