Ticket #31645: 31645.2.patch

src/wp-admin/includes/class-wp-press-this.php

@@ -347 +347 @@
                         return ''; // Return empty rather than a trunacted/invalid URL
                 }
 
-                // Does it look like an URL?
-                if ( ! preg_match( '/^([!#$&-;=?-\[\]_a-z~]|%[0-9a-fA-F]{2})+$/', $url ) ) {
+                // Does it look like an absolute URL?
+                if ( '/' === $url[0] || ! preg_match( '/^([!#$&-;=?-\[\]_a-z~]|%[0-9a-fA-F]{2})+$/', $url ) ) {
                         return '';
                 }