From 889489e33ecd70400c3a3b3b970d2ae6666d3c3f Mon Sep 17 00:00:00 2001
From: Kevin Godell <kevin.godell@gmail.com>
Date: Mon, 20 Mar 2023 16:32:14 -0500
Subject: [PATCH] set default when root is not defined

---
 packages/node_modules/node-red/red.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/node_modules/node-red/red.js b/packages/node_modules/node-red/red.js
index 2f5ab354c..22b1eb224 100755
--- a/packages/node_modules/node-red/red.js
+++ b/packages/node_modules/node-red/red.js
@@ -316,10 +316,10 @@ httpsPromise.then(function(startupHttps) {
             } else {
                 continue;
             }
-            sp.subRoot = formatRoot(sp.root);
+            sp.subRoot = formatRoot(sp.root || "/");
             sp.root = formatRoot(path.posix.join(settings.httpStaticRoot,sp.subRoot));
         }
-        settings.httpStatic = sanitised.length ? sanitised : false;    
+        settings.httpStatic = sanitised.length ? sanitised : false;
     }
 
     // if we got a port from command line, use it (even if 0)