From 01d98fccd2c954115d9e5598501f0c797550f696 Mon Sep 17 00:00:00 2001
From: sawka <mike@commandline.dev>
Date: Mon, 9 Sep 2024 16:44:26 -0700
Subject: [PATCH] fix nullptr startsWith

---
 frontend/app/view/preview/preview.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frontend/app/view/preview/preview.tsx b/frontend/app/view/preview/preview.tsx
index 09674febf..c2cad16f6 100644
--- a/frontend/app/view/preview/preview.tsx
+++ b/frontend/app/view/preview/preview.tsx
@@ -296,7 +296,7 @@ export class PreviewModel implements ViewModel {
                         click: () => this.refreshCallback?.(),
                     },
                 ] as IconButtonDecl[];
-            } else if (!isCeView && mimeType.startsWith("text/markdown")) {
+            } else if (!isCeView && mimeType?.startsWith("text/markdown")) {
                 return [
                     {
                         elemtype: "iconbutton",