diff --git a/frontend/settings.js b/frontend/settings.js
index b5fbcff..23349b7 100644
--- a/frontend/settings.js
+++ b/frontend/settings.js
@@ -36,7 +36,9 @@ async function loadDevices() {
 
 async function loadOllamaModels(baseUrl, current) {
   try {
-    const r = await fetch(baseUrl + '/api/tags');
+    const parsed = new URL(baseUrl);
+    if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') return;
+    const r = await fetch(parsed.origin + '/api/tags');
     if (!r.ok) return;
     const data = await r.json();
     const sel = document.getElementById('ollama-model');