Ticket #20750: 20750.patch

wp-includes/link-template.php

@@ -1875 +1875 @@
                 $url = preg_replace( '#^.+://[^/]*#', '', $url );
         elseif ( 'http' != $scheme )
                 $url = str_replace( 'http://', "$scheme://", $url );
+        elseif ( 'http' == $scheme )
+                $url = str_replace( 'https://', "$scheme://", $url );
 
         if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false )
                 $url .= '/' . ltrim( $path, '/' );