From 48fe19cad80abaa1aee631be71cacb86da7f8890 Mon Sep 17 00:00:00 2001
From: Steven Clontz <steven.clontz@gmail.com>
Date: Fri, 1 Nov 2024 11:11:40 -0500
Subject: [PATCH] hide preview source button until nonempty

---
 packages/viewer/src/components/Dev/Preview.svelte | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/viewer/src/components/Dev/Preview.svelte b/packages/viewer/src/components/Dev/Preview.svelte
index ca690cc..35a8505 100644
--- a/packages/viewer/src/components/Dev/Preview.svelte
+++ b/packages/viewer/src/components/Dev/Preview.svelte
@@ -38,9 +38,11 @@
   </div>
   <div class="col-sm" data-testid="output">
     <Typeset {body} {truncated} />
-    <hr />
-    <section class="description-markdown">
-      <Source source={body} external />
-    </section>
+    {#if body.trim().length > 0}
+      <hr />
+      <section class="description-markdown">
+        <Source source={body} external />
+      </section>
+    {/if}
   </div>
 </div>