From ebdfcb1cce19fbb8517e42131852e9588e3c247a Mon Sep 17 00:00:00 2001
From: Leo Feyer <github@contao.org>
Date: Tue, 11 Sep 2018 10:35:20 +0200
Subject: [PATCH] Check for an external stream first

---
 tcpdf.php | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tcpdf.php b/tcpdf.php
index a9d0457..b0f643a 100644
--- a/tcpdf.php
+++ b/tcpdf.php
@@ -6840,6 +6840,11 @@ class TCPDF {
 			// image from string
 			$imgdata = substr($file, 1);
 		} else { // image file
+			if ($file[0] === '*') {
+				// image as external stream
+				$file = substr($file, 1);
+				$exurl = $file;
+			}
 			$wrappers = stream_get_wrappers();
 			foreach ($wrappers as $wrapper) {
 				if ($wrapper === 'http' || $wrapper === 'https') {
@@ -6849,11 +6854,6 @@ class TCPDF {
 					$this->Error('Stream wrappers in file paths are not supported');
 				}
 			}
-			if ($file[0] === '*') {
-				// image as external stream
-				$file = substr($file, 1);
-				$exurl = $file;
-			}
 			// check if is a local file
 			if (!@file_exists($file)) {
 				// try to encode spaces on filename