From c07d4ab23a1f1592a7abec8e6582393affe3fe70 Mon Sep 17 00:00:00 2001
From: swdee <shanon@bokumail.com>
Date: Fri, 16 Jan 2026 23:32:04 +1300
Subject: [PATCH] handle momentarily bad reads from qrcode library

---
 src/Controller/ScanController.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/Controller/ScanController.php b/src/Controller/ScanController.php
index e9f6bafa..cc5e0bf2 100644
--- a/src/Controller/ScanController.php
+++ b/src/Controller/ScanController.php
@@ -295,9 +295,6 @@ class ScanController extends AbstractController
         return array_reverse($items);
     }
 
-
-
-
     #[Route(path: '/augmented', name: 'scan_augmented', methods: ['POST'])]
     public function augmented(Request $request): Response
     {
@@ -317,7 +314,13 @@ class ScanController extends AbstractController
             $modeEnum = BarcodeSourceType::from((int) $mode);
         }
 
-        $scan = $this->barcodeNormalizer->scanBarcodeContent($input, $modeEnum);
+        try {
+            $scan = $this->barcodeNormalizer->scanBarcodeContent($input, $modeEnum);
+        } catch (InvalidArgumentException) {
+            // When the camera/barcode reader momentarily misreads a barcode whilst scanning
+            // return and empty result, so the good read data still remains visible
+            return new Response('', 200);
+        }
         $decoded = $scan->getDecodedForInfoMode();
 
         $locale = $request->getLocale();