From e398520db024506a90b86d7618a6547146b472a4 Mon Sep 17 00:00:00 2001
From: Vin Howe <24789592+vinhowe@users.noreply.github.com>
Date: Mon, 23 Nov 2020 12:41:52 -0700
Subject: [PATCH] Fix MIME check for JPEG in lightbox copy handler (#4643)

* Fix MIME check for JPEG in lightbox copy handler

* Handle both image/jpeg and non-standard image/jpg
---
 ts/components/Lightbox.tsx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ts/components/Lightbox.tsx b/ts/components/Lightbox.tsx
index 91da37cdb16..b2e09686038 100644
--- a/ts/components/Lightbox.tsx
+++ b/ts/components/Lightbox.tsx
@@ -425,7 +425,11 @@ export class Lightbox extends React.Component<Props, State> {
     const { contentType } = this.props;
 
     // These are the only image types supported by Electron's NativeImage
-    if (event && contentType !== 'image/png' && contentType !== 'image/jpg') {
+    if (
+      event &&
+      contentType !== 'image/png' &&
+      !contentType?.match(/image\/jpe?g/g)
+    ) {
       event.preventDefault();
     }
   };