From 605fa2a574ed83b09f25ddc1abe081a4f44ef9e2 Mon Sep 17 00:00:00 2001
From: Sebastian Tschan <mail@blueimp.net>
Date: Mon, 29 Aug 2016 14:26:02 +0200
Subject: [PATCH] Don't throw for invalid EXIF values. Fixes #81

---
 js/load-image-exif-map.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/js/load-image-exif-map.js b/js/load-image-exif-map.js
index 96182e5..1a36108 100644
--- a/js/load-image-exif-map.js
+++ b/js/load-image-exif-map.js
@@ -343,13 +343,16 @@
         return this.stringValues[id][value]
       case 'ExifVersion':
       case 'FlashpixVersion':
+        if (!value) return
         return String.fromCharCode(value[0], value[1], value[2], value[3])
       case 'ComponentsConfiguration':
+        if (!value) return
         return this.stringValues[id][value[0]] +
         this.stringValues[id][value[1]] +
         this.stringValues[id][value[2]] +
         this.stringValues[id][value[3]]
       case 'GPSVersionID':
+        if (!value) return
         return value[0] + '.' + value[1] + '.' + value[2] + '.' + value[3]
     }
     return String(value)