Defaulting to jpeg if reddit image extension is not present.

src/methods/redditImage.js

@@ -12,7 +12,7 @@ function redditImage(post) {
             url: post.url,
             title: post.title,
             datetime: post.datetime,
-            type: mime.lookup(post.url.split('/.')[0]),
+            type: mime.lookup(post.url.split('/.')[0]) || 'image/jpeg',
             original: post
         }]
     });