From c3bd44362a78c3b5f1afec0ccf6ddf5a2973bdcb Mon Sep 17 00:00:00 2001
From: Symon Rottem <s.rottem@symco.com.au>
Date: Tue, 16 Aug 2016 14:46:00 +0200
Subject: [PATCH] html5_qrcode_stop did not reliably cancel ongoing calls to
 the scan function.

---
 src/html5-qrcode.js | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/src/html5-qrcode.js b/src/html5-qrcode.js
index 3650eff..801c7f4 100644
--- a/src/html5-qrcode.js
+++ b/src/html5-qrcode.js
@@ -32,11 +32,6 @@
                         } catch (e) {
                             qrcodeError(e, localMediaStream);
                         }
-
-                        $.data(currentElem[0], "timeout", setTimeout(scan, 500));
-
-                    } else {
-                        $.data(currentElem[0], "timeout", setTimeout(scan, 500));
                     }
                 };//end snapshot function
 
@@ -49,7 +44,7 @@
                     $.data(currentElem[0], "stream", stream);
 
                     video.play();
-                    $.data(currentElem[0], "timeout", setTimeout(scan, 1000));
+                    $.data(currentElem[0], "timeout", setInterval(scan, 500));
                 };
 
                 // Call the getUserMedia method with our callback functions
@@ -74,7 +69,7 @@
                     videoTrack.stop();
                 });
 
-                clearTimeout($(this).data('timeout'));
+                clearInterval($(this).data('timeout'));
             });
         }
     });