From 62cbd9b9d8eb0ca1d6f9eb217c1d26f05b3f78fd Mon Sep 17 00:00:00 2001
From: Oliver <oliver@noreply.localhost>
Date: Sat, 7 Feb 2026 20:42:25 -0700
Subject: [PATCH] Make the file extension algorithm return if a file wasn't
 provided

---
 module/utils/fs.mjs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/module/utils/fs.mjs b/module/utils/fs.mjs
index f0b02fd..1edb4cd 100644
--- a/module/utils/fs.mjs
+++ b/module/utils/fs.mjs
@@ -147,6 +147,7 @@ export async function uploadFile(path, file) {
 };
 
 export function determineFileExtension(file) {
+	if (!file) return null;
 	for (const [short, long] of Object.entries(CONST.IMAGE_FILE_EXTENSIONS)) {
 		if (long === file.type) {
 			return short;