From 623cec9d910c03dd67c94db3ce45bf334dafd869 Mon Sep 17 00:00:00 2001
From: Julian Lam <julian@nodebb.org>
Date: Wed, 8 Oct 2025 11:07:43 -0400
Subject: [PATCH] fix: logic error in image mime type checking

---
 src/activitypub/mocks.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/activitypub/mocks.js b/src/activitypub/mocks.js
index a88fed09dc..1e04fb99ab 100644
--- a/src/activitypub/mocks.js
+++ b/src/activitypub/mocks.js
@@ -104,7 +104,7 @@ Mocks._normalize = async (object) => {
 	if (image) {
 		const parsed = new URL(image);
 		const type = mime.getType(parsed.pathname);
-		if (!type || type.startsWith('image/')) {
+		if (!type || !type.startsWith('image/')) {
 			activitypub.helpers.log(`[activitypub/mocks.post] Received image not identified as image due to MIME type: ${image}`);
 			image = null;
 		}