From c47b76bb74a20e768ab56989141dfe39bc07ea65 Mon Sep 17 00:00:00 2001
From: Vinay Pulim <vpulim@users.noreply.github.com>
Date: Thu, 21 Jan 2021 10:05:38 -0500
Subject: [PATCH] fix: freezes on iOS due to an uncaught exception

---
 src/worker/jsqr.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/worker/jsqr.js b/src/worker/jsqr.js
index 9f1b549a..598d5f0c 100644
--- a/src/worker/jsqr.js
+++ b/src/worker/jsqr.js
@@ -18,7 +18,14 @@ export default () => {
 
     self.addEventListener("message", function(event) {
       const imageData = event.data;
-      const result = jsQR(imageData.data, imageData.width, imageData.height);
+      let result = null;
+      try {
+        result = jsQR(imageData.data, imageData.width, imageData.height);
+      } catch (error) {
+        if (!(error instanceof RangeError)) {
+          throw error;
+        }
+      }
 
       let content = null;
       let location = null;