From 919a79c010e2680cea002ce30329305e08f590fb Mon Sep 17 00:00:00 2001
From: Mathieu Parent <salketer@gmail.com>
Date: Wed, 19 Dec 2018 10:08:26 +0100
Subject: [PATCH] Update index.ts

Do not try to extract thumbnail if there is no pointer.
---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index d967b9f..8695aaf 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -117,7 +117,7 @@ export const load = (binary:string) => {
         const pointer = exifIfd[40965];
         interopIfd = exifReader.getIfd(pointer, "Interop");
     }
-    if (firstIfdPointer != "\x00\x00\x00\x00") {
+    if (firstIfdPointer != "\x00\x00\x00\x00" && firstIfdPointer != null) {
         const pointer = _utils.unpack(exifReader.endianMark + "L",
                                firstIfdPointer)[0];
         firstIfd = exifReader.getIfd(pointer, "1st");