diff --git a/alg/libqr.cpp b/alg/libqr.cpp
index 0287889..a268d12 100644
--- a/alg/libqr.cpp
+++ b/alg/libqr.cpp
@@ -422,6 +422,7 @@ bool emblem_dot_angle(ProcessState &ps, InputArray in, float &angle, string &qrc
         preprocess(ps);
 
         if (!detect_qr(ps, 0.20, true, err)) {
+            qrcode = ps.qrcode;
             err = "detect_qr: " + err;
             return false;
         }
diff --git a/scanner/assets/qrtool.wx.wasm.br b/scanner/assets/qrtool.wx.wasm.br
index e36531b..16a8701 100755
Binary files a/scanner/assets/qrtool.wx.wasm.br and b/scanner/assets/qrtool.wx.wasm.br differ