diff --git a/backend/windmill-worker/src/worker.rs b/backend/windmill-worker/src/worker.rs
index 20d063dfc9..1278624c9a 100644
--- a/backend/windmill-worker/src/worker.rs
+++ b/backend/windmill-worker/src/worker.rs
@@ -1907,6 +1907,7 @@ pub async fn run_worker(
             tracing::error!("error in awaiting send_result process: {e:?}")
         }
     }
+    tracing::info!(worker = %worker_name, hostname = %hostname, "waiting for interactive_shell to finish");
     if let Some(interactive_shell) = interactive_shell {
         if let Err(e) = interactive_shell.await {
             tracing::error!("error in awaiting interactive_shell process: {e:?}")
diff --git a/frontend/src/lib/components/instanceSettings.ts b/frontend/src/lib/components/instanceSettings.ts
index cc18716488..4f278ec7e8 100644
--- a/frontend/src/lib/components/instanceSettings.ts
+++ b/frontend/src/lib/components/instanceSettings.ts
@@ -82,12 +82,11 @@ export const settings: Record<string, Setting[]> = {
 			storage: 'setting',
 			error: 'Base url must start with http:// or https:// and not end with / or a space',
 			isValid: (value: string | undefined) =>
-				value
-					? value?.startsWith('http') &&
+				value == undefined
+					|| value?.startsWith('http') &&
 						value.includes('://') &&
 						!value?.endsWith('/') &&
 						!value?.endsWith(' ')
-					: false
 		},
 		{
 			label: 'Email domain',