diff --git a/web/public/camera-5.1/js/main.js b/web/public/camera-5.1/js/main.js
index c439c34..0949562 100644
--- a/web/public/camera-5.1/js/main.js
+++ b/web/public/camera-5.1/js/main.js
@@ -192,15 +192,19 @@ function do_handle_frame() {
 async function start_check_auto_torch(qrcode)
 {
   should_check_auto_torch = false;
-  var r = await fetch("https://themblem.com/api/v1/check-auto-torch/?qrcode=" + encodeURIComponent(qrcode), {
-    method: "GET",
-  });
-  var d = await r.json();
-  debug_log(JSON.stringify(d));
-  if (d.enable_auto_torch && !torch) {
-    toggle_torch();
+  try {
+    var r = await fetch("https://themblem.com/api/v1/check-auto-torch/?qrcode=" + encodeURIComponent(qrcode), {
+      method: "GET",
+    });
+    var d = await r.json();
+    debug_log(JSON.stringify(d));
+    if (d.enable_auto_torch && !torch) {
+      toggle_torch();
+    }
+    camera_sensitivity = d.camera_sensitivity || 1.0;
+  } catch (e) {
+    debug_log("start_check_auto_torch exception: " + e);
   }
-  camera_sensitivity = d.camera_sensitivity || 1.0;
   setTimeout(() => {
     done_checking_auto_torch = true;
   }, 200);