From e52a709080fa791087ffdb5301e45980d347eed2 Mon Sep 17 00:00:00 2001
From: "Aaron D. Lee" <aaron.daniel.lee@mgial.com>
Date: Sun, 4 Jan 2026 21:06:04 -0500
Subject: [PATCH] Forward worker stderr to main process for debugging

---
 frontends/web/subprocess_stego.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/frontends/web/subprocess_stego.py b/frontends/web/subprocess_stego.py
index 8fa027f..ac775ad 100644
--- a/frontends/web/subprocess_stego.py
+++ b/frontends/web/subprocess_stego.py
@@ -179,6 +179,10 @@ class SubprocessStego:
                 cwd=str(self.worker_path.parent),
             )
 
+            # DEBUG: Log worker stderr to main process stderr
+            if result.stderr:
+                print(result.stderr, file=sys.stderr, end='')
+
             if result.returncode != 0:
                 # Worker crashed
                 return {