From ff16a6411b0218a9f279f71bcaf6e8948ad6a02e Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Thu, 28 Oct 2021 15:50:54 +0300
Subject: [PATCH] Composer: Support non-standard JPG extensions (#1517)

---
 src/components/middle/composer/helpers/buildAttachment.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/components/middle/composer/helpers/buildAttachment.ts b/src/components/middle/composer/helpers/buildAttachment.ts
index 94ef5cf0..13862f47 100644
--- a/src/components/middle/composer/helpers/buildAttachment.ts
+++ b/src/components/middle/composer/helpers/buildAttachment.ts
@@ -9,6 +9,7 @@ import {
 import { scaleImage } from '../../../../util/imageResize';
 
 const MAX_QUICK_IMG_SIZE = 1280; // px
+const FILE_EXT_REGEX = /\.[^/.]+$/;
 
 export default async function buildAttachment(
   filename: string, blob: Blob, isQuick: boolean, options?: Partial<ApiAttachment>,
@@ -30,6 +31,10 @@ export default async function buildAttachment(
         return buildAttachment(filename, newBlob, true, options);
       }
 
+      if (mimeType === 'image/jpeg') {
+        filename = filename.replace(FILE_EXT_REGEX, '.jpg');
+      }
+
       quick = { width, height };
     } else {
       previewBlobUrl = blobUrl;