From d38f2cf5b59467adf0597efddf51f80cdce9ed21 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Thu, 22 Jul 2021 22:49:30 +0100
Subject: [PATCH] Fix display of image messages that lack thumbnails

Fixes https://github.com/vector-im/element-web/issues/18175
---
 src/utils/MediaEventHelper.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/utils/MediaEventHelper.ts b/src/utils/MediaEventHelper.ts
index cf34d5dea4..8b8edcc62a 100644
--- a/src/utils/MediaEventHelper.ts
+++ b/src/utils/MediaEventHelper.ts
@@ -67,6 +67,7 @@ export class MediaEventHelper implements IDestroyable {
     private prepareThumbnailUrl = async () => {
         if (this.media.isEncrypted) {
             const blob = await this.thumbnailBlob.value;
+            if (blob === null) return null;
             return URL.createObjectURL(blob);
         } else {
             return this.media.thumbnailHttp;